I just finished hacking a madcatz xbox pad....
the good thing about this hack is that the xbox pad is still completely intact and can still be used....
but from the bottom, there's now a couple of extra cable that sticks out....

those cables can be plug into my joysticks....
so, for fighting games, we can use arcade sticks to play....
note: madcatz... (at least my version....) has a common ground... (including the 2 analog trigger buttons...)
I hacked the digital pad, buttons A, B, X, Y, Black, White, L, R, Select, Start.
I might hack another one for my friend....
have fun...