hey, i have a M jiberish oh word and its a little to small to ski in and i would like to try streaching it ( along with some other nasty jiberish pieces both new and old! SO PLEASE HELP ME OUT!!
This is kind of a impossible and down right bad idea. I'd say just sell your pieces and buy some that are sizes you like. That way you're happy and aren't forced to ruin Jiberish.