B (F' R' F) //EO 4/24
(L2 U') //jzp 6/24
(R B2 R F2 L') //DR 4b2 4e lots of variations. 11/24
(F2 D2 F2 D^ L2 B2 U^) //HTR 18/24
(F2 D2 L2 B2 * D2) //2e2e+slice 23/24
*= B2 L2 D2 B2 L2 B2 D2 L2 //slice 8-6 = 25/24
so after HTR we have (F2 B2 L2 [B2 D2 L2 D2])
[]= U2 R2 U2 B2 //slice -1 = 24/24
^=w //+0

There is a 23 from 1 of the variations but it seems unfindable to me:
nissy-# solve -o -t 64 R' U' F R2 F2 D2 R2 U2 F2 R2 F L2 R2 D' F U' B D2 L' B R2 D' R' U' F (F' R' F L2 U' R B2 L D2)
B U' B2 U2 F2 D' B2 D B2 L2 U' D2 B2 R' (14)
B D' R2 U2 L2 U' B2 D' U2 F2 R2 U B2 R' (14)

(B R') R //EO 3/24
U B //rzp 4c4e 5/24
D U' B2 U F' //DR 2c5 10/24 Only DRs I found were this (+ variations that were also 5qt) and 2c4 in 12 so had to go with this.
D B2 D F2 U' B2 L2 U'^ B2 U^ //HTR 20/24
B2 D2 R2 F2 //slice 24/24
^=w //+0

Bad scramble. Just happy not to DNF. Also might be first time that I actually used 5qt DR in an actual solve :D

D (L' R' U) //EO 4/21
(B') //rzp 4c2e 5/21
(R' D2 L2 F' L2 F') //DR 4c3 11/21
Not that promising DR but the best I could find on this scramble.
(L^) R'^ B2 R //HTR shortest possible htr for this set :D 15/21
D2 R2 * B2 //3e+slice 18/21
*= R2 D U' B2 D' U //slice 6-3 = 21/21
^=+0

Also had this simple linear 21 to slice but no +0 there. After DR:
(L' D2 L2 B2 R D2 R' D U' B2 U' D) //2 moves cancel with normal side.

Really lucky finish but we take those :)

EDIT: Missed the good NISS EO R' B (L B') I keep missing these 2+2 EOs. Need more practise there definitely.

(F U D B') //EO 4/22
(R') //jzp 
(D' B2 D' R2 F2 U') //DR 2c3 4e with tons of variations 11/22 
(B2 U2 L' B2 U2 L'^ B2 L^) //HTR 19/22
(U2 R2 B2) //slice 22/22
^=+0

(D' L B U') //EO 4/25
(F) //rzp 5/25
(L B2 L B2 R' F') //DR 4a2 4e 11/25
R2 B2 L^ B2 R2 B2 U2 L^ //HTR 19/25
B2 U2 F2 D2 //slice 23/25
^= M2 //+2 25/25
Kind of a bad solve and unlucky +2 slice makes for a bad result :/

(F2 R D B' U) //EO 5/26
(L) //rzp 4c4e 6/26
(U2 B L2 D2 * B R) //DR 2c3 2e 12/26
[F' U2 R2 F'] R2 B //HTR 18/26
U D' B2 U' D' //2e+slice 23/26
*= D2 L2 B2 D2 B2 L2 D2 B2 //slice 8-6 = 25/26
[]= B' R2 D2 F2 B //+1 26/26

Bad scramble. Mallard didn't even find a solution with EO 4, rzp 5, DR 11.
This was the only semi decent DR I found and it happened to be 13 optimal and all 13 solutions were really hard to find.

F U2 D2 L //EO 4/26
B //rzp 4c4e 5/26
U' R2 L2 B2 D2 F' //DR 2c3 6e 11/26
D' (U2 F2 L2 [U' B2 U') //HTR 18/26
(B2 R2 L2 U2] F2 L2 F2) //slice 25/26
[]=D' R2 U' R2 F2 B2 U D //+1 26/26

B' D' //rzp 4c4e :D 2/22
R' F2 L' B U2 R2 F' //DR 4b2 2e 9/22
(B2 U2 L' B2 R) //HTR 14/22
(U2 F2 D2 R2) //double slice 18/22

Now we have:
B' D' R' F2 L' [B U2 R2 F' R2 D2 F2] U2 {R' B2 L U2 B2}
[ ] = F R2 F B' L2 F' L2 U2 B2 U2 //slice +2 = 20/22
{ } = L' D2 R D2 F2 R2 L2 //+2 22/22
Unfortunate slicings, both +2 but still quite good result for my standards

L B' L //EO 3/22
F2 D B //jzp 6/22
(F2 L2 U2 B') //DR 2c4 10/22 (4 different variations)
(D'^ R2 U' R2 % F2 D' F2 D'^) //HTR  18/22
(R2 B2) //2e2e+slice 19/22
% = R2 U2 F2 L2 B2 D2^ L2 F2 //slice 8-5 = 22/22
^=w

B2 F' U //EO 3/22
L //rzp 3c2e 4/22 several 10 move DRs availible from this rzp
B' L2 B R' F' R' //DR 4c3 10/22
B^ R2 B2 U2 B^ R2 B' //HTR 17/22
D2 R2 U2 F2^ R2 //slice 22/22
^=w //+0

(L2 U' R L') //EO 4/25
(U') //rzp 4c4e
U2 B' U R2 B2 U //DR 4b2 4e 11/25
L2 F % (R2 U2 R2 F) //HTR 17/25
(D2 R L' U2 R' L F2 %) //slice 23/25
% = S2 //+2 25/25

Apparently doing the R L' 3e cycle before the D2 gives +1 slice which I sadly missed. :/

(B' R' D F' U) //rzp 4c2e 5/23
(D2 R' B D2 B') //DR 2c3 4e 10/23
(L' F2 L % U2 L) //HTR 15/23
(D2 U2 R2 %) //floppy 18/23
(U2 B2 U2 B2) //slice 22/23
%=M2 //+1 23/23

(B) D2 U' B //EO 4/23
D' //jzp 5/23
(U^ L2 D^ L2 R2 U') //DR 2c3 2e 11/23
F2 R' F2 U2 R F2 L' //HTR 18/23
U2 F2 L2 D2 F2 U2//leave "wrong" slice 24-1 = 23/23
^=w //+0

(U2 B' L) //rzp 4c4e 3/23
(U L2 U R2 D F') //DR 2c4 9/23
(D) D B2 D'^ L2 D^ //HTR 15/23
R2 B2 U2 L2 F2//2e2e+slice 20/23
F2 L2 F2 D2 L2 F2 L2 D2 //8-5 slice 23/23
^=w //+0

Also had this 7 move DR 
R L2 B //EO + rzp
R U B2 D //DR in 7
But it is 5qt and needs 3 moves on both sides to reduce to 2c4 so I didnt know how to solve it properly so I discarded it. Skill issue.

(D U F' R) //rzp 4/24
(F2 L2 D F' U) //DR 2c4 9/24
F(B' L2 B2 R2 B D2 B') //HTR 17/24
(L2 D2 % F2 D2) //3e //21/24
% = D2 R L' F2 R' L //6-3 = 24/24

B2 U2 L2 U' //EO
R //rzp 3c2e
(B' F L B L') //DR 2c4 in 10
(R2 B) B D2 B' R2 B //HTR in 17
(D2 R2 % L2) //2e2e in 20
% = R2 D2 L2 B2 U2 L2 D2 F2 //solved 8-4 = 24

(L' R F') //EO 3/22
(D') //rzp 4c2e 4/22
L F2 R' D L2 D //DR 2c3 4e 10/22
(L' U2 L) F2 L2 D2 R //HTR 17/22
B2 R2 U2 B2 R2 //finish 22/22

(B' R2 F') //EO 3/21
(D) //rzp 4c4e 4/21
R U2 F2 L' R D //DR 2c3 4e 10/21
(U2 L F2 L^ U2 R'^) //HTR 16/21
(U2 F2 L2^ D2 B2 D2) //slice 22-1 = 21/21
^=w //+0 21/21

R' U2 B L //EO 4/25
U' F //rzp 6/24
(F2 R2 U2 F2 D' F) //DR 2c3 6e 12/25
U^ B2 U^ L2 F2 L2 B2 D //HTR 20/25
U2^ R2 F' B' L2 B F' //slice 27-1 = 26/25
^ = w //-1 25/25

L' U2 L' U' //rzp 4c4e 4/25
B L2 F U2 B' R //DR 2c4 10/25
B D2 B^ D2 L2 B L2 B^ //HTR 18/25
R2 B2 R2 U2 B2^ D2 F2 //slice 25/25
^ = w //+0

D' B R2 U //rzp 7c8e 4/22
L2 F2 R B' L F //DR 4a1 8e 10/22
L (U2 B2 R U2 D2 L) //HTR 17/22
(U2 F2 D2 F2 R2) //finish 22/22

B U' B2 F' D //rzp 8c8e 5/23
(B R2 U2 B' R' L') //DR 4a2 4e 11/23
(D2 B'^) F2 D2 L2 U2 L2 F'^ //HTR 19/23
L2 U2 F2^ D2 //slice 23/23
^ = w //+0

(B2 L') //EO 2/23
(B2 U) //rzp 4c4e 4/23
(L2 D2 F2 B' U) // DR 2c4 9/23
D2 F D2 F L2 F' U2 F //HTR 17/23
R2 B2 //FR 19/23
U2 L2 D2 L2 U2 //solved 24-1 = 23/23

U B (U2 F') //rzp 7c8e 4/25
(R2 U' B2 L' U' R) //DR 2c4 10/25
(L2 U F2 [D' L2 B2 D' F2 D') //HTR 19/25
(R2 F2 U2 B2 D2]) //slice 24/25
[] = U' F2 L2 U' B2 U' F2 L2 D2 L2 U D //+1 25/25

(F2 L U D' R) //EO rzp 7c8e ARM 4c3e means it is worth NISSing
F' B' R2 D' F U //4b2 2e in 11
L2 D2 F' D2 F //HTR in 16
U2 L2 * U2 D2 //2e2e in 20
*= L2 U2 F2 U2 L2 B2 D2 B2 //8-5 solved in 23

Cool! I used 7c8e DR. Optimal from DR is 22 and it is easy to find from inverse but I was super low on time when I found this DR so quite ok with this

D2 U' L' B' //EO
D' //rzp 4c4e
L' U2 L D' F2 R2 U //DR 4a2 4e in 12
R B2 U2 R2 D2 [L' //HTR in 18
F2 D2 B2 D2 B2 L2] //slice in 24
[] = L R2 B2 U2 F2 U2 F2 R2 //+1

(U2 F' L) //EO
(F' D) //rzp 3c2e 5/25
U2 B' U' F U' //DR 2c4 10/25
(L2 B) [F U2 L2 F D2 R2 B'] //HTR 19/25
L' R' U2 L' R' //slice 24/25
[ ] = B L2 D2 F R2 U2 B2 F //+1 25/25

The DR is actually 15 move optimal :/ First time seeing that on a 2c4

(D' F2 R U) //EO 4/23
(R) //rzp 4c4e 5/23
(B' U2 L) //DR 2c4 8/23
F (U2 B2 D2 B' D2 B L2 B') //HTR 17/23
(U2 F2 L2 F2 D2 L2 F2) //solved 7-1 = 23/23

F2 L2 R' F , D' //rzp 3c2e 5/24
(R' D2 L U' R' U) //DR 4a1 2e 11/24
L (D2 R B2 R2 B2 R) //HTR 18/24 standard extension from (D2 R' B2 R)
(B' F L2 B' F' D2) //finish 24/24

L' U' //rzp 4c4e (wow!)
B2 L2 F' L2 F L' //DR 4b2 4e in 8
(U2 B) D2 B^ R2 B D2 B'^ //HTR in 16
R2 B2 U2 L2 F2 R2 //slice in 22
^=w //solved +0

DR was 20 optimal but all 20 and 21 solutions were of the same form and hard to find:
L F D2 B L2 F U2 R2 U2 D2 B U2 F2 (13)
You would need 3 moves on inverse to go to 2c3 4e and then switch. Really hard at least for my level.

F' B' U B' //EO 4/22
R2 D' //rzp 4c4e 6/22
R D2 L' B2 U //DR 2c3 2e 11/22. 
(L D2 L' D2 R2 U2 R) //HTR 18/22 standard extension from (L D2 L D2 R)
(D2 B2 D2 F2 U2) //finish 5-1 = 22/22

Only 3 sub5 EOs but luckily one gave 2c3 2e in 11.
Just missed a DR like this earlier this week so good to see I'm capable of learning things :D

(L2 B' D') //EO 3/23
(L)  //rzp 4c4e 4/23
(F' R' D2 F2 R) //DR 9/23
(F' %) R2 U2 F R2 U2 F'^ //HTR 16/23
U2 R L' D2 R' L //slice 22/23
^=w 
%= S //+1 solved 23/23
HTR is 22 optimal but unfortunately I missed the double slice finish:
(F) R2 U2 B U2 L2 B L R U2 L R' D2

Also I had this 22 to slice
(L2 B' D' L) //rzp
D2 R2 F R2 U2 B L //DR 2c3 2e in 11
F' D2 B D2 L2 B //HTR in 17
U2  R L' F2 R' L' //slice in 22
But apparently it is +4 (wtf?!) moves optimal slice according to slicey finder. Never had that before. And it is not even 1qt but 3qt to work with.

L2 B  //EO 2/20
D'  //rzp 3c2e 3/20
L2 F2 L2 U L' U //DR 2c3 4e 9/20
F2 L D2 L'^ F2 D2 R^ //HTR 16/20
U2 R2^ U2 R2 //slice 20/20
^= w //+0 solved 20/20

(U' F L)                      //EO 3/3
(D B')                         //rzp 4c4e 2/5
(U2 R2 D B2 D B)     //DR 2c3 2e 6/11
U ^ R2 B2 U B2 D ^  //HTR 6/17
F B' D2 F B               //slice 5-2 = 3/20
^= E2                        //solved 2/22