200-300-400 lb Test Monofilament Speargun Shooting Line

My experience with monofilament shooting line is that it gets shorter after a few days of sun and saltwater. I now leave my shooting line outside at least a couple days before crimping it in place. If I’m using a bungee without letting it shrink first, I leave the line just short enough that it doesn’t fall off the release lever. Or I avoid the bungee altogether and just crimp a piece of monofilament with one crimp then attach the shooting line to it. Maybe use a quick release swivel or pigtail for times where I need to remove the line to untangle a fish. Sounds wrong but it works.