So, one evening in and so far I'm enjoying the Zowie. The side buttons seem easier to use than the Sensei RAW and I swear it seems more accurate? The only thing I'm not comfortable with at the moment is the 800dpi thing, it's a little lower than i'm used to whereas I can't hit a barn door at 1600dpi. I'm sure i'll adjust though. It works a treat on the Hard Mat, the Zowie one should arrive today.
Unfortunately, no you can't on Zowies. One side disables the other.
Ah shame that, I don't see why you couldn't have used all the buttons in games
In my experience the FKs are hugely more accurate than the Sensei, the DPI multiples can be a bit of a pain but I'm a 400-450dpi/sens 6 player anyhow.
Yeah, it is frustrating because one on the right side would be a good PTT button...
For a very similar mouse (claw, same sensor) but with the button functionality you are after you could have a look at the Mionix Avior 7000.