Michael, it has been many years since I have purchased factory loads, but I think the polywad product is excellent and Jay was very helpful and receptive to questions I had at the time. I do not feel polywad gets enough or appropriate mention when the subject of short shells comes up on the boards or collectors groups.
That said I respect RSTs efforts to be present at the big eastern shoots and their support of clubs. So in my book either one leaves Gamebore in the dust.

The only gamebore I have purchased were some $5 a box closeouts at a Cabelas I stumbled into once. In the end, they all 3 went bang and I would pick on price 9 times out of 10.