I HATE these algorithms.

:[L'UR'U2LU'R]x2U

:[RU'LU2R'UL']x2U'
I really want to find an alternative because no matter what figer-trick I try to use, these are still my slowest algorithms. Have any of you found a decent alternative?
If you know alternatives for :
n17

R'L'U2RLy'RU'LU2R'UL'U2
and its mirror, that would be great too, I cant figure out a decent finger trick for these either