[user = '4033'] hansa [/ user] - I tried the same setup using multiple SSPros and experienced the same issue. SSPro gets hot, LED blinks when using PowerPak 2.5x3 (12.1v). Tested same SSPro with 2S PowerPak 2.5x2 and it works fine (LED solid, operates cool), but not enough voltage for the rainbow-tronic ignition.
As Richard stated - there is an issue with rainbow-tronic + SSPro + 3S
Ultimately switched to the rainbow-tronic ignition switch which supports 20v with PowerPak 2.5x3 and a separate RPM sensor to support CORE telemetry.