first triple 20!!!
U' L U B' D'
L2 U2 B2 D2 B' L // 11 2c3 4e
F R2 F2 R2 B R2 B
U2 R2 // 20

8.67 finish lengths. is there a guide on how to use NISSY to check optimal solution for each step?

swag
(F2 U')
(D2 R') L2 B2 D2 F L F R // 11 4a1 4e
(L2 F') // htr in 13 but its garbage

remove normal
B2 D2 B2 L2 F' R F L // blocky fish 3e for new htr in 14
D2 L2 [D2 B2 L2] // S in 19

[]->B2 L2 F2 U2 F2 // 21 - 1 = 20

and i didnt realize B2 D2 L2 F' R F L was an htr equivalent dr with an easy 7 mover for the htr in 13 lol (also has wrong slice in 17 but +3 opt, phew)

L' D' U2 F U'
B2 R2 F B L F R // 12 4b2
L2 F' L2 F2 D2 L2 F' R2 // 20

a plentiful harvest

other
(R' U2 B D' L')
(R2 F B2 L2 D') // 9 2c3 4e, +1 ext
B (L2 F' R2 F')
(R2 U2 L2 F2 D2) // S in 20, +1 opt

U F D L B
L2 U' R2 B2 D R' // 11 2c3 4e
(D R2 U R2 F2 U')
(R2 L2 F2 R2 U2) // 22

edit: 21.46 ao15 and im currently on track for demotion, lol

D R' F' B
(U' D R L' B2 U' R' U') // 12 4a1 4e
R2 U2 L
U2 F2 L2 B2 U2 B2 // 21

waw

(U' B2 D2 B') // dr equivalent eo
R D B2 L2 U R // 10 4a1 2e (originally 9 4b2)
D F2 D' F2 B2 U
(L2 D2 R2 B2) // E in 20

...U R [D F2 D' F2 B2 U B2 R2 D2] L2...
[]->U L2 D' R2 L2 U R2 F2 U' D' // 21

dr optimal except this is an htr equivalent extension of the 9+2, i did check this for htrs in 15 oof
(B2 D2 B')        
R D' U2 F2 R2 U L' // 10 4b2 4e
U (D' B2 U R2 D)
(R2 B2 L2 B2) // 20

10 sub-10 drs
B' D2 L' B, D L D R // 8 4a2, worst corners
B' D B' R, R2 U2 R2 L2 D' F // 9 2c3
(F2 U2 B, L' U' D2 L' D L) // 9 2c3
(F2 U2 B', R2 F2 R' U2 L' U) // 9 2c3
B' L' D2 B, (L' U F2 L2 U) // 9 2c3
D B2 R, (U' B' D' B' D' B) // 9 4b3
U2 L F2 U, (F2 L' U2 L B) // 9 2c4
(F2 U2 B'), U (R D2 F2 R' D') // 9 2c4
etc