Please excuse me if this has already been covered in the Forum. I recently purchased a factory built RV-12. I've flying since 1978, but I'm not immune to mistakes. With the unseasonably hot, humid weather in Georgia this spring I've been taxiing with the canopy about 2" open, resting on the closed latch. An instructor friend of mine recently commented that taking off with a canopy unlatched is the primary cause of fatalities in an RV 12 and suggested that if I plan to keep doing this I should invest in adding a canopy lock indicator light. I think that's a great idea. Can any of you tell me if there is a system designed to be used with an RV 12, and where can I purchase it?