I've used PYB in the past, and I will again, when pricing is favorable.
I may have some in the stash, not sure.
I have PP in one car right now.
Always did like Pennzoil, while I've used only a little Valvoline, and I consider Castrol GTX overpriced, although I have gotten a few deals on it.
PYB seems like a solid oil at a decent everyday price.