I haven't had a problem breaking off 4/15(4lb diameter 15lb test) Power Pro, just tighten it down and point your rig at the snag, hold the spool and walk backwards. Get ready to duck though, if you straighten the hook instead of snapping the line the lure can come screaming back at you!. I have never had PP fail when I did not want to break off, I certainly can't say the same for mono.