Can someone tell me what the right spring rate would be. 98 YZ80,13yo 115lb intermediate,riding MX/SX tracks. I would like to err on the side of stiff as he will only get faster and heaver, and this will be the last mod for this bike as I think he will be ready for a 125 by next fall. My Guess was 3.1 fork, and 5.2 rear. If your out there Jeremy I was wondering if you could tell me a little bit about PDS here in WA.as I am thinking about having them do the valving. Thanks.