On the SD, a setup I kept seeing was to cut 2 coils off the .15 springs and run 2 instead of 4. Granted that was in 8ights and 8ight-Ts, but it might be worth a shot, I can't imagine springs cost that much.

Crash, sounds like you're having a rough winter season. Hope you get it worked out soon, I know it's frustrating to blow 30-40 bucks only to have the part combust on the first few runs.