Ok, another question. I am big into jewelry crafting lately, but this is my first project using stretch cord (stretch magic). It seems like when I go to finish bracelets the cord breaks, sending beads flying everywhere. At first I thought it was crimp beads (even tho I've seen a few projects calling for them), so I stopped using them. Then I thought maybe it was the knots breaking, but I realized it's breaking in the middle. Could I just be pulling it too tight? It just seems so fragile, if I go to put a finished bracelet on and it breaks. I also read in the instructions that you should stretch the cord before using it. I didn't really do that, but would that cause it to break so easily?