Been using Power Pro for several years now salmon fishing and I have no reason to switch and no complaints. I do change it every couple of seasons, after I have stripped it down to about 50 yards or so left on top of the mono backing - it does wear out but so does everything as much as I fish . I buy it in bulk spools and put on maybe 100 yards at a time.

The only fish I have ever lost to a mainline break on Power Pro came this summer, when I was doing something stupid like strip-casting for summer steelhead using 10 pound PP (that's 2 pound diameter ) with my fly rod on some sour summer steelhead that I could only interest with a slightly weighted fly bounced off their nose from long distance - I was using a stike indicator as a float and fishing probably 30 yards above them to stay out of sight. Well, one hog about 3 feet long finally ate my fly, and after nearly cleaning me out first going upstream and then downstream I had him worked up to the bank, when he caught his second wind, ran me around the one little stick out in the middle of the pool, and ran me back upstream. I finally waded out over my boots to loosten my line from the snag, but by then about 50 yards of line was frayed, and when I finally came up tignt on him it parted readily. So don't use the real skinny stuff where it can be abraded, and you will be ok.