I'm not sure, but I find it's faster to fix your corners first:
Swap two left corners - U2, L', U, R, U', L, U, R'. Keep doing, adjusting what is on the left until done. It shouldn't take more than 3 times to do this.
Rotate two left corners - L', U2, L, U, L', U, L then the same on the other side: R, U2, R', U', R, U', R'. This will not take long either.
Then permutate edges in the normal way.
Please take off topic discussion off this forum. Thanks.