The original sheaths for the Becker were slightly bigger than the ones that are out now. They were recieving complaints that the tie-down rivets in the bottom of the sheath would come off in rare instances, so they re-manufactured the whole sheath. I have one old sheath, and one new sheath. With a little stretching, I was able to get approx. 10 feet of 550, and 6 pieces of tinder behind the new kydex insert. The best way I could find was to put it all in a garbage bag, then stuff it down in there.
I also recieved a few PM's about how I got the knife retention snaps to close with the 550 cord wrapped around the handle. The answer is the same as Neals question. They are using a different sheath now. You can't do this with the new sheath unless you modify the snaps. If you were going to do this simply for better grip, I would suggest getting self-adhesive gauze from Wal-Mart, and wrapping that around the handle. It works fairly well, and you can still use the gauze if an emergency came up.
Hope this helps! Let me know if you would like pictures of the two types of sheaths.
John McIntire