[Emi]

von Speedsolving:

Swap UF with UR (changes 4 centres):
R F' L2 F2 U' D R' F B' D' F2 D F'

Swap UF with UR (changes 6 centres):
U2 R2 D R' L B' R2 F2 U D' R' F' B U

Swap UF with UB (changes 4 centres):
U F' L' B U' R' L2 D L' D' B R L2 U

Swap UF with UB (changes 6 centres):
F L R' B U2 D' F U L' U' L R' D' F' R'

they should work.