Yeah, lol. I was up to 300 feet of fuse at one point - 2 rolls of red, 1 roll of green. I got a kit to make estes type rocket engines, and used to tape them to a stick and plug the upper end with some loose powder on top of the compressed fuel = large bottle rockets. Safety first, for the most part. Wouldn't go there nowadays, you'd wind up in the local newspaper, lol.