For what it's worth, I owned a PW 800 in the 80's, reloaded thousands upon thousands of 12 ga shells.
I shot trap for about 5 years, and sold it for what i paid for it. I did have the odd bloop round, but that would have been, in most case operator fault.
It's usually the powder that gets missed, but the percent of bad shells were minimal. I think it was a great machine, but I have never used anything else to compare.
I had on occasion, on of my kids help me load up a case (500) at that time, for a couple of shoots i was going to on the next weekend. Well I was in Bassano for a Saturday only shoot, had a few bloops out of my first 100, but won despite, then a few more bloops at handicap, and won that despite, doubles was a blast when the first shot was just a primer and then the next shot with powder in it, not very smooth, I couldn't recover from that. Any way they ran a calcutta, and the guy that bought me immediately came over and gave me 4 boxes of factory AA's. The whole place roared, I thought it was pretty myself. I did end up making the guy some money, can't remember what, but I think he might have broke even. That Bassano club was always a good time.
Regardless the ponsness was a good machine for me. my 2 cents.