I recently purchased some igniters from a company that Brenton from RIMRA uses. The heads are bigger than the igniters that you all purchased. I traded two of them with Curtis. If they work in E and F composite motors I would like to buy some from anyone that has more than they need. Either that I can also trade some of mine. They work on C,D,E and F black powder motors.
Sorry, Frank. I use those orange e-matches to light BP motors. I doubt they would work for composite motors--especially 24 and 29 mm composites because the nozzle is so small. I just ordered a bunch of Estes Sonic igniters from Belleville Hobby for that.