Scored every inch on the inside, roughly 1/4" deep with a single pass from a back saw, parallel to the circumference. Packing tape (non fiber) wrapped around the circumference of the outside, each strip at least touching if not overlapping. May use some glue in the scores, but i have not as of this moment, trying to keep weight down a bit. I get the feeling 55lb is going to creep up awful quick on this scale.Was originally going to use balsa to create a box in the middle of the fuse for strength, but i think two inches of foam and some home depot rulers should be plenty strong.