Dave
There was an issue with counterfeit Power Pro.
http://www.powerpro.com/press/downlo...ATEGORY_ID=103
I wouldn't think that Turner's would sell you the fake stuff, but it could happen.
I use the 50# PowerPro Spectra on most of my reels and I haven't had a problem. I got snagged on the bottom many times on the San Carlos trip and I had an opportunity to put a lot of pressure on my line and knots. I now have complete confidence in my ability to tie an Albright. On one occasion I managed to bend the Owner 4/0 Gorilla hook without having the Spectra, 50# SeaGuar fluoro, or the Albright knot fail.
Your problem does make me wonder about QC on Power Pro. I would like to test the Spectra on all of my reels to see if there is any variance in parting strength.