So ive been into rockets since I was 10 or so. But always launched Estes and Quest rockets. I am getting a MadCow Rocketry "lil Goblin hopefully soon. First I read that It can use Reloadable motors but when I search those motors all that comes up is just the repacking stuff. Dont I need a "cannister" for it all to fit inside of? What am I missing. And lastly, the 'lil goblin ive been reading online and a few other sources the body tube is fiberglass but others say its cardboard. Im just looking for clarification.