BigJ12 If you do it just like bigbulls then don't you burn the second knot while it's on the string. I usually tie it loosely with slack then undo it and cut it tothe perfect length and burn both ends. When I re-tie and make the loop extremely small so i can use the slack to tie the know when I pull the knot tight it is perfect length. You have to be farily dexterous to do it this way but then you don't have to burn it while on the string.