I don't think many guys (if any) shoot stock class regularly here in the UK. Therefore we shoot whatever we can get, at reasonable quality & a good price. Some of the rec-grade paint we shot last season was too hard for pump play, leading to a lot of bounces even at close range. I would rather shoot a more brittle, tournament grade shell this year if possible, and pay a little more for paint if need be.
It's really frustrating to have a sitter of a target, and put several goods shots in only to see them bounce. You don't get many 2nd chances in situations like that on pumps. We shot Sterling Mace at the pump 3-man masters last November, and it performed very well on the day.