@Bravo
very odd. i was running 1280x1024 x 2 in horizontal span last night.. my main full screen @ 1280x1024 and my alts were in a 2x2 on the right screen... 640x512 each. my fps wasn't great, but i attribute this to my single core 2.2GHz AMD (was only able to do maxfpsbk of 10, maxfps 20)

the pip swap was taking time.. 2-4 seconds... again, i attribute this to my single core as wow tries to reset its graphics engine (keyclone is only moving a window.. there isn't much to do otherwise)

if you can drop me a screenshot, maybe that'd help