(D2 L2 D' L')
U D B R2 U//2c3 2e (9)

extend:

F2 U D B R2 U//2c3 2e (10)

(F U2 F L2 U2 F')
(R2 B2 U2 L2)//20 to S, +1

I had a 21 to slice from the original DR but it doesnt +0:

(D2 L2 D' L')
U D B R2 U
(U2 D2 B U2 B U2 B' L2 F2 U2 R2 D2)

and another one from a different +1 extension:

(U2 R2 D U2 L)
U D B R2 U'
B U2 R2 F R2 U2 B L2 U2 L2 B2

other:

(D B' U' L)
(D2 B' D' F U F)//4b2 2e (10)

(L) R2 F L
B (B2 F2 D F D' B)//some 2c3 i think, didnt check it though

(R' F L' B)
L U F2 D'//4c3 (8)
R D2 L2 F2 R' D2 R
D2 F' B' L2 D2 F B//20 to M, +0

other:

(R F L' B)
L U F2 D//2c3 6e, also 20 opt but I didn't find it

L U F2 D
F B (R2 D2 B L2 F)//2c3 2e (11)

F L' D' B R
B' U2 R2 B' D2 B//4b2 4e (11)

B U' R U' L
B R2 F D'//2c3 2e (9)
F U2 L2 B' R2 B'
L' R F2 L R'//20 to S, +1

amusingly straightforward for how bad the scr looks

other:

B D2 R U L'
D2 F' B2 U//4c3 (9) had 20 to slice +1 on this too

B R' U L
F' R2 F2 R2 D B//4b2 4e, theres a 2e from this too

B R' U L
(U' R2 F2 B2 D F D)//2c3 6e/4e

U B' U' B D
F' U2 R' D2 L'//2c3 6e (10)
B' (B R2 B')
(L' R' F2 R' L' D2 R2 F2)//22

trash scr

other:

D' U B' U'
B (F' D2 L R2 B)//2c3 6e (10)

U (D' L U)
R' F L' B2 L U2 B//4b2 2e (11)

D' U' L F U
(L' R2 B U2 L)//4c3, nice 5c switch based on ARM, 21 opt with 5q smh

(R) F2 U' D L'
(D' F' R2 B2 U')//2c4 (10)
(B L2 F' R2 B L2 B')
(U2 L2 F2 R2)//21 to S, +0

Finally, 3c case with pairs tracing pays off

other:

(R F2 U' L)
(R2 F2 D F)//4c4, also 21 opt but I'm glad I didn't have to actually solve this bc ew

(F' U' L' F2 D)
R' F' U2 R F2 R//2c3 2e

(R D2 B' U R)
B2/Bw2 U' B L2 U2 F//4b2 2e/4e

F2 U' L2 B
R D L2 R2 D R' D//4b2 4e

(D2 B D2 B')
(L' U2 F2 U' L' D)//4a1 4e
(B2 U2 R')
(F2 U2 F2 D2)//ok

didn't enjoy this one

I found this linear backup 20 at first:

(L U' D2 F' D)
(L2 R2 F R' F)
(U2 R' F2 L D2 B2 R2 B2 R2 U2)

Initially, I wrote (D2 B D2 B U2 B2 L D L' U) for 4a1 2e, only at 50 did I check again and realise you can solve it another way and it instantly did the thing so yay i guess

E: wait I marked that 8+2 that everyone used as an 8+5 lmao, task failed successfully I guess?????????

other:

(L U B D')
(B L B' R' B)//4b2

(D2 L' U' L')
(U F R2 B' D2 B)//4b2

(D L' U' L)
(B' U' B2 D' B)//4c3

and a lot of 10s I didn't really look at