if you like a stiff hit you can feel, don't get the predator. they have a dead hit to them on the front end, kind of numb. avoid the OB 1 or 2 as they both are soft being hollowed out and foamed filled. OB classics are solid throughout and you can feel the hit. i've played with all the above shafts. get the classic with the kamui black soft. it will hit like a medium tip. and if it is a little soft for you liking at first, it will get harder with play.
i can't speak to the OB butts, i've always wanted to get one. i have an OB classic pro on a schon butt. plays great.
Yea I think the ob is the winner I have a custom my self but it has a wrap starting not too like it so I think I'm gonna get the hole ob sneaky