@fredswain, et al.
I've spent the past month "rebooting" my setup mindset with great results. My SC10 is the best it's ever been, I've started winning races, and I have a sense of confidence to tweak according to the specific demands of each track. I appreciate your having shared so much of your experience and mindset.
Where I still have some difficulty, due to the choice to go against the grain slightly, is finding matched sets of springs, since I'm using the Proline Powerstroke shocks and their dual-spring setup. I've found a base set of front/back top/bottom springs that are very balanced for my weight distribution, but anytime I sense the need to move to slightly stiffer/softer springs, the move isn't as simple as one would guess based on the spring rate chart published by Proline.
http://prolineracing.com/images/howt...SpringRate.pdf
For starters, I don't understand how Proline calculated their combined rates. I'm going to contact them for a bit of insight there. Maybe someone on this thread can chime in with an explanation. My approach was to navigate the chart diagonally from the softest pair up to the stiffest, but as indicated by the numbers, this often leads to a softer top with a stiffer bottom, which could leave the first stage of compression almost entirely used, depending on ride height and spring collars.
Basically, I've found that dialing in dual springs is extremely complex. Moving to a softer/stiffer top or bottom spring alone doesn't always lead to the effect on balance that I'd anticipate and I'm having to switch to entirely different sets of springs - often times switching from a stiffer top to a stiffer bottom to regain balance. I guess the tradeoff for trying to use the dual setup is more tuning ability *if* you know how to tune with it.
I'm wondering if you have any particular experience, or general guidelines, to offer for a dual-spring setup. It may just be a matter of me investing
lots more time with the kit to find additional combinations, but I'd think there'd be a logical way to read the chart and calculate combined spring rates (or a better way to interpret the numbers on my part) which would simplify the process to some extent.
Any thoughts appreciated.