4x4 in <R, r, U> help! :(

[rachmaninovian]

after trying to scramble using <R, r, U> and solving with the same parameters i keep getting a parity (by parity i mean...2 cycle?)
how do I prevent such parities from happening, or how should I solve these?

this is what I do normally:
1. centres
2. finish 3x3x4 block (which is essentially solving FDr and BDr edges)
3. pair up and solve RD dedge
4. f3l
5. LL corners, LL edges.

 

[Stefan]

C'mon, you know this. At least make a guess.

 

[Swordsman Kirby]

Heh,

Spoiler

U2rU2rU2rU2rU2rU2

My method is simple: centers, corners, edges. I might solve a few edges (BDr for sure) before I move onto corners. This is actually quite fun.