I have pretty much settled on Perimeter weighted Style Single cams for now...I especially like the design improvements made with a dual track idler wheel as well as similar cam/idler wheel size. The "next generation" of PWSS cams have super adjustability allowing the user to "custom design" the draw cycle...
...but, I had a chance to shoot a Command Cam Plus equipped bow yesterday and I must say that they have taken a step in the right direction with those....
I seem to get more accuracy out of single cam bow (depending on style) because of the sharp valley and solid backwall (something that the dual cam bows of old were lacking, but which now is no longer the case).
As for maintenance.....the single cams that I have shot/owned definitely were not "maintenance free", but at least I didn't have to constantly tinker with cam synchronization....<img src=icon_smile_wink.gif border=0 align=middle>