It's never stretched like that for me. I tend to tie my line very tightly. After going around the hose and bolt snap a few times, I then wrap it between the two a couple of times and tie a square knot. Doing it this way takes the slack out of the line.ppo2_diver:For those of you that use cave line, do you get the line wet first? I tried using cave line for my SPG. During a dive it became very stretchy and eventually the knot slipped through and separated from the bolt snap.
I leave enough end - about 1" and then burn them both down onto the the knot itself. This cements the knot. I have yet to have the knot fail doing it this way.