I definitely agree that Powerplay actions should be restricted to Open only, but I think these restrictions should be taken further. For starters, UA bombing should only be allowed in Open, in that if at any point while carrying UAs the player enters Solo/PG, the UA can no longer affect stations, and the same for Meta-Alloys. BGS should still be able to be influenced by Solo/PG, but possibly in a reduced state (25-50% of normal influence changes). Just my opinion.