(F L F' U) // EO (4/4)
(L U2 D2 B2 L B) // DR 2c3, 4e (6/10)
(D2 R^') U2 D2 F2 R' D2 R^ // HTR (8/18)
U2 D2 L^2 D2 // M (4/22)

^ = w (+0/22)

Optimal from DR


Other:

(D2 L U')
(B' U2 D2 R F L2 F) // 2c4 in 10, 23 opt

L' R2 F D'
L D2 B2 F' L2 B L // 4c3 in 11, 24 opt

Sloppy attempt, no other DRs

(B' L2 U D' L) // EO (5/5)
(U) // JZP (1/6)
F2 B2 D' R2 D R2 D // DR 4a1, 2e (7/13)
(L2 B^ R2 B^' U2 D2 F^') // HTR (7/20)
(D2 R2 F2 R2 F2 $ R2) // S (6/26)

^ = w, $ = Fw F' (+1/27)

DNF by slicing wrong

(U) B2 R' U' D' // EO (5/5)
B' L U2 F2 R F' // DR 2c3, 4e (6/11)
R B2 L ^ F2 L' // HTR (5/16)
[B2 F2 U2 F2] $ // M+E (4/20)

^ = Lw2 L2, $ = x2 // E (+1/21)
[] -> U' D L2 R2 U2 R2 U D' (+4/25)

... R2 U {D' x2 U'}
{} -> D2 (-1/24)

21 optimal from DR, for whatever reason I checked D2 R (... but not U2 L (...
No other DRs

(F2 L) // EO (2/2)
U' B U2 B2 U2 F2 R2 D F // DR 4b2, 2e (9/11)
(B2 U F2 U) // HTR (4/15)
R2 F2 U2 L2 U2 L2 B2 D2 F2 R2 F2 // Solved (11/26)

Other:

B L2 D2 L'
B' U2 B U // 2c4 in 8

(D' R' F B) // EO (4/4)
(D B2 R' D R D) // DR 2c3, 6e (6/10)
F2 R' B2 L F2 U2 D2 R' // HTR (8/18)
F2 U2 F2 R2 // Solved (4/22)

Optimal from DR

Other:

(R B D F)
(D R2 L' U2 D2 R' D) // 4b2 in 11, 23 opt

(R B D F)
(D' R2 L' U2 D2 R' D) // 4b2 in 11, 23 opt

(D' R' F B)
(D) R2 U2 R2 D R' D // 4b2 in 11, 22 opt

(B R D L F) // EO (5/5)
U F2 D' R D R // DR (6/11)
D' (B2 U) L2 B2 D $ // HTR (6/17)
F2 R2 B2 D2 L2 F2 D^2 L2 F2 // E (9/26)

^ = w, $ = Dw2 D2 (+1/27)

Because of the stupid way I found this HTR I never saw the continuation (B2 U ...) which leads to a 24

Other:

(B R D L F)
(D' B2 D2 U L U' L) // 4c3 in 12, 26 opt

F B U D2 F' // EO (5/5)
U2 L' D2 R F2 U // DR 2c3 (6/11)
(R^2 B2 L^) R2 U2 R U2 R^ // HTR (8/19)
D2 B2 F2 L2 B2 D2 // M (6/25)

^ = w (+0/25)

Missed the unique optimal by 1
Forgot to try F (D2...) after DR

D' B' R2 L D' // EO (5/5)
(B' L2 B F2 L' B2 L') // DR 4a3 (7/12)
F (U2 F L2 D2 F) // HTR (6/18)
(R2 U2 L2 U2 B2 L2 B2) // solved (7/25)

(B') L2 U' F // EO (4/4)
(L) U2 B2 D' L2 D F2 R // DR 2c4 (8/12)
D R2 U (D2 L2 F2 [D L2 D]) // HTR (9/21)
(L' R' F2 R L) // E (5/26)

[] -> Dw' D2 L2 Dw (+1/27)

Tragic scramble

D' (R2 B U') // EO (4/4)
(B2 R B L2 F U2 B L) // DR 2c3 (8/12)
F2 U2 D2 F^' R2 B' L2 U2 F^ // HTR (9/21)
D2 R2 L2 F^2 R2 D2 B^2 // S (7/28)

^ = w (+0/28)

Unique optimal from DR, first blocky fish

D (L F2 U) // EO (4/4)
(L) F' L2 R' B R // DR 2c3 (6/10)
[B2 L2 B2 D2 B'] R2 F^' L2 F^ // HTR (9/19)
L2 D2 R2 U2 B^2 // S (5/24)

[] -> D2 B^2 L2 B (-1/23)
^ = w (+0/23)

R' (U' R') // EO (3/3)
U B U L2 D' L2 F // DR (7/10)
U^' R2 U^' (U^ B2 U^') // HTR (6/16)
R2 U2 R2 D^2 B2 L2 B2 // E (7/23)

^ = w (+0/23)

(F' L) // EO (2/2)
U D' (B2 L2 D2 L2 B' D) // DR (8/10)
(L2 [F R2 F2 U2 F'] U2 L2 B) // HTR (9/19)
(L2 U2 B2) // S (3/22)

[] -> B U2 F2 L2 B' (+0/22)

(F) L F // EO (3/3)
R (R2 D F2 D2 L2 U' L') // DR (8/11)
(U' B2 D R2 F2 [U') // HTR (6/17)
(L2 D2 L2 D2] F2) // E (5/22)

[] -> D' B2 U2 F2 D U (+1/23)

R' U' F B R L' B' L2 F' B' L D R' F2 R' B2 R' B2 R2 U2 L' U2 L' B2 R' U' F
U B // EO (2/2)
R2 D R2 L2 D2 L U L2 U // DR (9/11)
F2 R (U2 B2 R F2 [R) // HTR (7/18)
D2 U2 B2 [R2 B2 // M (5/23)

[] -> R L U2 L' (+1/24)

U (L R' B U) // EO (5/5)
(L) B2 U2 F L2 F L // DR (7/12)
(D2 B) B' U2 R2 B // HTR (6/18)
D2 L2 U2 R2 U2 B2 U2 // solved (7/25)