where did you get your setup for your weights.thats one i havent seen yet.800 mxz has quite a bit of testing with this im sure he can put you on the right track.i havent tried my new setup yet but will very soon here it is 4.3 shoulder,0 base, 14.5 center, 4.0 tip, 48/42 dalton helix, beige secondary at 19lbs, stock primary 160-230, i am far from stock though hope it works. happy sleddin.