James,

sorry for the delay, have been busy cleaning up after having a tornado come through Tuesday night.

You can try Race Tech, or Traxxion Dynamics to get a spring asap.

I will hopefully get some time today to actually go through my notes (inbetween cutting more knocked down trees up that came down all over my property).

I want to say I was running 15/38, but that doesn't take into account my internal gearing.

Jetting? Well as we all know, that really depends on the bike. My RS has a very narrow jetting range. Not sure how it compares to the earlier model RS's. Most likely I was running 165/168 mains, but not sure about the rest of my settings.
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Charles Gallant