Yeah, I get pretty much the same that you get. I just get impatient in pvp and start spamming like amd and one time I even had keyclone stop working completely.

I figured it might have had something to do with all regions being on top of each other in my case. When I press F1 I just want my first account to be on top, F2 the second, F3 the third, etc. If I repeatedly press on key, it should just get that window in front once and not work afterwards.

But since, PiP works with regions, it keeps trying to swap regions around? PiP is made for windows scattered over your entire desktop dimension I suppose. Maybe it might be an idea to add a 'nerfed PiP' that doesn't actually change regions but merely 'activates' the target WoW window to be on top, on the fly. For those who want on the fly switching mainly for PvP purposes and have there regions stacked on top of each other for the best switch latencies..

Since I play four shaman, I hardly -need- to see all chars at the same time in PvP. And for questing and such I can just use my 1x3 set up over two screens.