AeroTech Sumo

I had my doubts about the piston ejection because it was way too tight in the body tube. I had to sand it down a lot so that I could pull it out, even after that I still had to use a great deal of force. Just to be sure the chute would deploy I put petroleum jelly so it would slide in and out easier. I put a G77-4R and at about 500’ the chute came out no problem.....one last thing this is a heavy rocket