I'm guilty of buying PS shells as I have 10 boxes in the office right now ready for the next couple of seasons. With that said, you are speaking as if what you are saying is factual. If so, I would assume you can provide evidence to show these loads are in fact better than the others? I would love to stop spending extra money on shells if I can be shown that it is, without a doubt, a waste of money.Prairie Storm shells are nothing but a gimmick, with some great advertising.
Round Pellets of hard shot has always been what counts for long range pattering.
Shoot what you like but the standard 12ga 2 3/4 inch 1330 FPS in 6 shot or 4 shot has been the standard Duck & Pheasant load for the past 75 years. This load will work a majority of the time.
For ultra long range Winchester 12ga 3 inch 1 7/8oz copper platted 4 shot has proven to be the best.