I actually didn't have a coil to take pictures of in my apartment, but this should definitely be more clear. Let me know if you have any questions magnus.
@Marc - yes. You should be able to squeeze a bit more power out of an HPI light coil with a floating ground and full wave rectification. I think the mini rotor coils might be incased though, so you might have a time trying to free up that other end.
Your hookup sounds good though and you should have 55w to play with which should be enough right? Not sure if your flasher portion of your post is a question, or just throwing part of your wiring out there to be analyzed.
As long as it's still running off the battery, there should be no change switching from full to half wave rectification. I wouldn't bother with it though if you have the mini rotor -unless you are indeed having issues getting adequate power.
Inner rotor is very easy to float the ground on as the grounding of the coil is very accesible - mini rotor not so much (I think, based on the pictures I've seen).
Do you have the mini or inner rotor? (edited)