Interesting Jax that you have had some iffy results with PP. I haven't used it in lighter lb tests. But I have used 30 for backcountry snook fishing for over 20 years with great results. It is, in fact, the line of choice among the salt water crowd.

Despite rumors to the contrary it is not especially abrasion resistant and perhaps therein lies the crux of your missteps with PP. I always have a 3' section of 40 FC which is very abrasion resistant when I backcountry fish. Get that PP on a barnacle and it will blow up.

Fray a few threads on some rocks in the Q and it just might come apart. I also wonder what sort of knot you are using and if you are testing it sufficiently. Perhaps it is pulling off the lure? There would be no tell tale curly cue.

Your right about the muskie lures costing a bunch. I was quite bummed when I thought my tackle backpack was at the bottom of lake Superior. But there it was still stuffed under my seat when I rolled my boat upright.