wondering what people feel is a good head angle for a mtb dirt jumping bike. i have heard steeper is better but, realistically, how steep is too steep? Id imagine on fast, open Mx type courses a slacker angle is desired but what about on more "trails" type jumps- tighter with more rhythm? i ride more trails than race courses and for my upcoming bike im aiming for a 3" fork with a 71/70 degree head angle. would i want it any steeper than that?