I wish someone would revive the WMO 1.1A. My favorite mouse, as far as comfort is concerned. Shell, weight, button placement, mouse wheel, thumb ident... Don't know what it is about it, but it's just, well, right. Nothing else I've tried comes close. The FK1 is decent, but not close. Too flat and slim, but pretty good otherwise. Didn't like the EC1 with the slanted right side. Then Alcor suffers the same issue, but less so. Much prefer ambi-style mice.
I still have a WMO that I keep for old times sake. Cable is busted, buttons double click, missing feet, and it's not really up to scratch as far as accuracy is concerned. Just need a WMO with a 3310, Huano / Omron, don't really care, and a couple of thumb buttons. Pretty please? Zowie would be in a good position for that kind of product. Don't know why they persisted with their own designs trying to 'emulate' the WMO (AM, FK, FK1), while never really getting its specifications quite right.