Well, I'm blind- my apologies- when I read "spring" and "fork", I did not distinguish them in my mind. Reading Dlaing's post I see it's clear you're talking rear and front. I'm educated, not necessarily smart.
Ratchet- I'm not saying it's a complete stab in the dark, but since I haven't had a chance to set mine up yet, it still seems a bit 'waffley' (if that's a word). I'm prolly going to follow your set up as close as I can, having let you do all the trials. I weigh about 180, if I recall that's not too much heavier than you are.