Are <M,U> or<R,U> U-Perms more popular?

What U-Perms do you use?


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If you use R for both, M for both, R for one and M for the other, or R/M depending on AUF, it won't affect your speed much, but why would you use more than one alg for the same case? You'll occasionally pause just choosing between the algs, which is totally pointless. Doing an alg should be automatic; why add a decision? Don't spend more time than recognizing the case takes before starting the alg. Keep decision making to a minimum, other than during inspection.

I use <M,U> for 3x3 and <R,U> for big cubes. On 4x4, I use <R,U> U perms but <M,U> Z and H perms. 5x5 and up, I use <R,U> for everything.
 
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I use RU for Ua always, which i have 3 RU algs for, one for the regular case, one from the opposite side, and one with an AUF (which i use most of the time). For Ub, i use the 2 gen R'UR'U'R'U'R'URUR2 for one case and the MUM for the other case because i use righty double flick
 
It depends on the position my hands are in. If I just had a regrip, probably MU. But if I just got done doing an R move for my OLL/COLL, then I use RU. If it is from the back, I use RUL (R U R' U' ) (L' U' L U) (U R U' R') (U' L' U L)
 
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