I just bought some new leaders but have been a little afraid of replacing them just yet, even though I've studied the procedure through various threads and online videos. Nobody has showed how to actually attach them to your rollers though. they are mostly about squaring them up. I think I may need a friend to help hold them up and I guess double sided tape? Would have been nice if APQS had sent some instructions for putting them on along with the leaders. All I got was the fabric.