If face turns aren't natural, why use it? Oka is about the only method I know that uses face turns and it has a max of three per solve...it just seemed strange although it's logical for cubes to be face-turning, the internal angles of the pyraminx is just too little for that to work I guess.
1. They're faster for me, they just don't feel as natural.
2. I use Oka.
3. I just need 3 algs, one of which I already have written out in extended.