Woke up this morning and saw that fmc europe was about to finish. So I decided to try the a3 scram as soon as it was realised to see what I would get. I didn't end up checking the 1+4 for 20 but I did get this 21, which no one else seems to have found:
U' D' R' F L
R2 U R2 F' B' // extend 9 4c3 to 10
(B2 L2 U') R2 U R2 U
L2 F2 D2 F2 // 21

I didn't check this dr extension until switching from inverse, good ol bounding ig

Other:
(D' L U B R')
(U' D2 F' D2 B' D) // 11 2c4

(B' L U D R)
(F' D F2 R2 U B) // 11 4c4

And that's pretty much it lol