B F (R' U2 F') //EO 5
(B2 D2 R2 D F2 R') //DR 6/11+1
(F2 B2 U) //HTR 3/14
(F2 U2 B2 L2 F2 R2) //FINISH 6/20

was stucked on this variations of this 11+1
F B (R' U2 F) //EO 5
L2 U2 F2 L2 U' L //DR 6/11+1

B U F' R' F //EO5
L R2 B2 L2 U R U R' //DR 8/13+2
U' (L2 U') //HTR 3/16
L2 D2 B2 L2 F2 R2 //FINISH 6/22

backup:
B U F' R' F //EO 5
L' F2 L2 D R D R' //DR 7/12+2
(F2 R2 U') F2 R2 F2 U' //HTR 7/19
B2 D2 L2 F2 R2 F2 //FINISH 6/25

had tried block building and got bad results, after 40 minutes, tried so many variations of 2c3:
B U F' R' F L
B U F' R' F' L

R B' (D' R F) //EO 5
(D L D L') //DR 4/9+3
U R2 F2 L2 U2 F2 U' B2 U' //HTR 9/18
F2 D2 R2 F2 R2 //FINISH 5/23

this is the best HTR i can found on this DR. turned out it's optimal
after 60 minutes found this is also 23 too:
(F) B' F L R' F //EO 6
D2 L U' L' U' L' //DR 6/12+3
U (U B2 U) //HTR 4/16
do a DR flip
(U B2 U R2 U2 F2 U') //HTR 7/19
(R' L' U2 R L) //FINISH 5-1/23

(F) L D' R' F //EO 5
R2 U2 B2 D R2 U R //DR 7/12+3
U' (D' R2 D) //HTR 4/16
(U2 F2 # D2) //L3E 3/19
#: F2 R L' U2 R' L //6-2/24

(D) R2 U' //EO 3
(L2 R2 F) //JZP 3/6
B' D2 B //DR 3/9+4 
F2 R' B2 R D2 R' F2 L' //HTR
F2 B2 U2 R2 B2 //FINISH

also got these DRs
R2 U (D' R2 F) //JZP 5
(R B2 R' D2 R) //DR 5/10+3

R2 U (D' R2 F) //JZP 5
(R' B2 D2 R' B2 R') //DR 6/11+3

F' B' D R //EO 4
U (F D2 B' U2 F' U) //DR 7/11+4

B' D F2 R' //EO 4
U2 D2 F U' D2 B //DR 6/10+5

(B U' D R) //EO 4
(U2 B U' L2 F2 D' F) //DR 7/11+3

F' B2 U //EO 3
(F) F' //RZP 2/5 many thx to Jay
L U2 F L2 F' //DR 5/10 2c4
L (B2 R B2 R' B2 R') //HTR 7/17
(D2 * R2 F2 R2 F2 B2 *) //FINISH 6/23
*: S2 4-5/22

R D L B L //EO, RZP 5
[F D2 F U2 F] //DR 5/10+2
(U) B2 U //PHTR 3/13
{F2 U'  R2 L2 D' //HTR 5/18
R2 D2} //double slice 2/20
[]: F' B2 U2 B R2 B //+0
{}: F2 U' R2 L2 U' B2 U D //+0

(B U' L' F) //EO 4
(R' D2 L') //JZP 3/7
(D B2 L2 U) //DR 4/11+2
(L' B2 L) //PHTR 3/14
(D2 B2 # L2 B2) //L3E 4/18
#: B2 D2 F2 R' F2 D2 B2 L' //8-5/21

got so many jzps from this EO and its extensions
(B') U' D2 B //EO 4
D L' U2 B2 L F2 D2 L //DR 8/12+1
F2 D (U' F2 B2 D) //HTR 6/18
DR flip
(B') U' D2 B //EO 4
D L' U2 B2 L F2 D2 L' //DR 8/12+1
(U' F2 B2 D * F2 U' *') //HTR 6/18
(D2 B2 R2) //Leave slice 3/21
*: E //+0

back solution:
F D F' L U //EO 5
B (D2 B' L' B) //DR 10+3
(R F2 R) U2 R2 F2 R' //HTR 7/17
U2 F2 D2 F2 L2 U2 //FINISH 6/23

L2 R B //EO 3
R //JZP 1/4
(U2 L U2 L U2 L') //DR 6/10+2
L2 U2 B2 U' L2 D //HTR 6/16
R2 #' B2 U2 B2 R2 B2 # //Leave slice 6/22
#: M //+1

B' R' L2 F // EO 4
L //JZP 1/5
(U2 B2 U2 L B2 R') //DR 6/11
(D * R2 U' *') F2 D //HTR 5/16
U2 B2 L2 R2 //leave slice 4/20
*: E //4-3/21

(L B2 R2 B) //EO 4
(R') B2 L U2 L //DR 5/9
U (D' * F2 R2 D' * R2 D) //HTR 7/16
(R2 F2 U2 * F2) //leave slice 4/20
*: widen +0

so many varations. also got:
(L B2 R2 B') //EO 4
R //JZP 1/5
(D2 R' U2 L) //DR 4/9+4

(L' R' B' R) //EO 4
(D) F B' D' B2 D //DR 6/10+4

(L' R' B' R) //EO 4
(D) F B D2 R2 U F2 U //DR 8/12+2

D2 R2 F L //EO 4
(F2 R2 F' D) //DR 4/8+4
(B' L2 F') U2 L2 B' U2 F' //HTR 8/16
B2 R2 B2 R2 U2 //FINISH 5/21

the DR has two variatons and the opt from this one is 20 with 6qt

(R' U R) //222 3
L D' B //EO 3/6
L2 D B2 L D' L2 //pseudo f2l-2 6/12
(L) D L' D R D R' # D2 L D2 #' //FINISH 10/22
#: M //4-5/21

(F') U B //EO 3
R (U B2 U2 F2 R2 D' R') //DR 8/11+3
(B2 U') F2 D R2 U //HTR 6/17
D2 L2 U2 L2 B2 //FINISH 5/22

B U' F2 R //EO, DR-3C6E 4
B2 U' B D' U2 F //DR 6/10 4b2
U2 F2 L2 D' B2 L2 D' //HTR 7/17
L2 B2 L2 D2 L2 U2 //FINISH 6/23

the optimal after DR is 12. failed to find it

D' R' F' D //EO 4
(L') U2 L R2 F B R2 L B' R' //DR 10/14 4b2
(D2 B L2 U2 B' *) //HTR 5/19
(D2 R2 B2 *') //Slice 3/22
*: S //4-3/23

7c8e was fun

L' U2 L' U //EO 4
(B2 L' U2 B' L F') //DR 6/10 4b2
(L) R F2 R B2 L' //HTR 6/16
B2 D2 B2 R2 F2 D2 //FINISH 6/22

D' B R2 U //EO 4
L2 F2 R B' L F //DR 6/10+1
L (D2 F2 L' U2 D2 R') //HTR 7/17
(U2 B2 U2 F2 R2) //FINISH 5/22

(L') F' B2 L //EO 4
U D B' U R2 B2 D2 F //DR 8/12 4b2
R2 F2 L2 U F2 U # //HTR 6/18
R2 F2 D2 L2 U2 D2 # //FINISH 6/24
#: E2 //4-5/23

D F' //EO 2
(R' U') B2 L' F2 U' //DR 6/8 4b2
(D2 F2 B2 L2 D2 L' U2 R') //HTR 8/16
(D2 *' F2 R2 D2 *) //Leave slice 4/20
*: E //4-3/21

U B2 U B (F) //EO 5
(L) U2 R2 U B2 D' R //DR 7/12 2c3
U' F2 D F2 L2 U //HTR 6/18
(L2 D2 B2 D2 B2) //FINISH 5/23

(U L F' D)
(F2 R F' R F2 R) //10 4a2
(F') U2 L2 B * //14
U2 D2 *' L2 U2 B2 D2 //20 4X
*: S //4-2/22

backup:
(U2 F' R' F)
F2 D L2 U L2 D' R' //11 2C3
U' B2 U F2 L2 B2 L2 D' //19
B2 L2 U2 F2 D2 //24

(U2 F' R' F)
F2 D L2 U L2 D' R' //11 2C3
U F2 U2 B2 U' B2 L2 B2 R2 U //21
B2 L2 //23

extend the DR:
(U2 F' R' F)
F2 D L2 U R' U2 R L2 D' R' //14 4a1
(R2 F2 D) //17
(U2 L2 B2 L2 F2) //22