I'm not totally sure what you're asking about the ignition specifically. In my opinion, a trouble maker is never a good thing, haha.

Anyway, I'll give you my opinion/experience. I initially had issues with my motor taking a few seconds to settle into an idle from higher RPM (the RPM would "hang" a little while before dropping down where I'd expect it to), which made landings tricky. I ended up having a crash, so when I reused the engine on the next plane I bought a DLE 30 ignition to replace the original. The ignition for the 30 doesn't have the "timing step" that my DLE 20 ignition had. My issue with the hanging RPM was gone with the new CDI. So, if you find you have a similar problem, switching to an ignition without the variable timing will most likely solve the issue.

Hope that helps some. That sounds like a cool combo you've got planned.