R (F B2 R')
(D' F2 B U2 R2 D')//10 2c3 4e only good DRs are on this
(F) U2 F2 U2 F L2 F
U2 B2 U2 R2 L2//ok (22)
21 opt with 5q but I'd rather check 60 EO's

Had 22 to Slice from D... var, was +0

B L' D2 R'
U R2 D' B2 U' B//4b2 10
U F2 R2 U2 B2 D'
R2 F2 R2 F2 R2//21 slice +0

of couuuurse variant on other EO has 4Q 20
of couuuuuuuurse extension in 11 has 20

(D' B2 L)
(D F' D2 F2 D B2 D B)//11 4b2 4e but...
(U L2 B2 U)//HTR(15) but
(U2 D2 F2)//3e (17).. useless actually but let's solve cube

..U'
F2 L2 F2 D2 F2 L2//21

When you find your final on your first DR Sub 12 minutes in

Missed the EO for 19
Missed the DR from 3c4e even though switched cause 2pairs
Bad solve

U
(F2 {L B2 R})
(F' R2 B' U)//9 2c4 but wait

{(R D2 L)}//Somehow it's preserved 9 2c4
B' (F L2 D2 F' U2 F)//HTR(16)
(L2 D2 B2 R2 U2 R2)//Slice(22) +0

L' (D' B2 R)
(D) F' L2 F B2 U'//2c4 (10)
B (F' R2 F L2 U2 F')
(R2 U2 L2 U2 F2 R2)//Slice(23) +0

Backup not improved, other 10 2c4 had 22 but missed it, other than that 10 4c4 and 10 4a2 2e... but the latter does not exist :(

D (F' D)
L U2 R L2 F//4c4 (8) no thanks

D' (F' D)
R' D2 L' D2 L B//4c3 (9) found 21 to slice with blocky fish

D' (F' D)
R2 U2 L' F' L2 D2 F//4b2 2e with var
(B2 R' F2 L)//HTR(14), let's spam other side
F2 B2 D2 B2 R2 F2 U2 L2//Slice(20), just widen trigger for +0

Several 20 of this shape can be found
Analysis destroyed me, thought I did something nice and I missed double slice for 18, just had to check other var of HTR so stupid of me

Reco later

F D
(R' B' F' R U2 R)// 8 4c4, no thanks

F D'
(R F B)
F' U2 L2 F//9 4b2 2e, billion vars + RLFB trick
R2 F2 R D2 R'
F2 D2 R2 F2 U2//Slice (19) +0

Then if you do F' you get 18 to slice +1

18 is kinda findable but was not well organized, so missed it

(D2 L) F2 R
D2 R2 U' L2 F L2 B'//11 2c3 2e
U L2 U B2 R2 U
D2 R2 L2 B2//Slice(21) but in fact 20
+0 for 20 wtf

Found this after 55, last var I checked of this, and wasted too much time on useless 2c4 in 10. 
Also had 21 opt 11 4c3 but did not check

B' U F L2 D
R2 U2 L U2 F'//4b2 2e(10)
R (B2 L)//HTR (13)
(B2 U2 R2 U2 B2 U2)//S Slice(19)

+3 for DR opt

Had DR for 21 but did not check that path
Also have 21 to slice +1 after this

(F) U' D L2 F'
(U' L2 B2 U R)// 4a1 4e(10), 2 var, I'm saved ?
(D) U R2 L2 D'//HTR(15)
B2 L2 F2 B2 D2 L2//Slice(21).

From that I checked other var, and other DR's, thinking I should have 22 but +2 for 23, found DR too late and 22 is very possible and 21 is optimal from these

L' F' U2 B'
D' R2 D L U2 R'//4b2 6e (10)
(U2 L2 F2 U' B2 D')
(L2 B2 L2 F2)//Slice (20), +1

(F)
D' F' U R
(D' R2 D' F2 L2 B)//2c3 6e (11)
F2 D (D F2 D')//HTR(16)
(R2 F2 R2 B2 U2)//Slice(21) but it's in fact 20 but it solves in 21

Happy with this solve, checked a lot of stuff and 11 move DR's 
First found 21 from
(B' U' F' R)
(D2 F2 B2 D' F2 U' F)//11 4b2 2e

EDIT : crazy enough that 19.67 only draws

F' L B
(L B2 L F2 L' D)//4b2 4e(9)
(F2 R D2 B2 L')
(U2 F2 R2 B2)//Slice(17)+1

Tfw this EO with so many 9 move DR's, and found this at 20 min, ended at 30 min.
That's FMC PB during a competition

(B' U' D R)
(U B' D2 {F U2 F2 U})//2c3 4e(11), 4 vars
L2 B'//4b2 2e

{F' U2 F2 U}//Change var
(B' R2 L2 D2 F' D2)//Slice(19) wtf
+1 for 20

(D2 U' B' R2 D')
D2 B2 R2 F' R F'//11 4b2 4e
(U2 R) U2 F2 R//HTR(16)
D2 F2 U2 L2 U2//Slice(21), miracle +0

Honestly given what I had, I was happy very with 22 but nice +0, kind of makes up for +2 on A2

R D' (B' U)
(R B2 U2 F' L)//9 2c3 4e with blocks, might be a good one
F' (D2 [F' D2 F])//HTR(14)
(U2 B2 D2 L2 U2)//Slice(19) as expected but...
[B F2 R2 B' F2] //21

R F' D L
(F L2 U2 F)//8 2c4 but corners are awful on normal
(R2 U) U' F2 R2 U' L2 U'//HTR(16)
R2 D2 R2 F2//Slice(20),+0

Basically I was ready to switch every +2 to 2c3 that gave good corners, but the 2nd gave this. Missed 19 though

U (B2 U' R' D)
L' D2 R2 B U2 F//2c3 4e(11)
L (U2 L' B2 L)
(B2 L2 U2 B2 D2 L2)//21

Found after 55, clearly the only DR I had that worked, bad attempt but stupid +10

L F2 R
D' B D2 F U' F'//2c3 4e(9)
B2 U' (U R2 U2 L2 U')
(L2 B2 L2 D2 B2)//Slice(21)+0

DR was found 10 sec after starting checking EO's which I guess is PB
Missed the 20 to slice though

B2 D (B D)
(F) B2 D2 L' F//9 2c4
L' U2 L U2 L' D2 B2 R
U2 R2 D2 L2 U2//22, +0

Interestingly I had the DR for the 20 from L2 U F B' L cause I checked this extension but didn't come back given that I got a lot of better ones. Same for the 21's off the unextended EO, checking 4c3 0e in 11 there's no way