Pete good to hear from you! I will not to get to the deep bush until late July as my masters class takes all my time now.
I put a 6 strand D-10 on my whip and it put me into another spine range. That said, it now shoots a 515 grain arrow @ 173 FPS and is 48 pounds at my draw ... is super quiet to boot. that is almost 11 grains per inch of draw, I love the added performance. Also, my son's Mohwak has one and it jumped about 7 FPS with the same arrow. once shot in, no creep ... it is real good stuff and very quiet as well!
I hae been shooting my Deathwish lately, D- shaped longbow. Man it is fun.
Hope to see you at a shoot or two this summer Pete.
Bob.