the name show d lar
from
3h->4h->5h->5hv2->7h
where's 6H??
1,2H??
LOL

The 6Gv2  "media control keys" are driver driven. There are no dedicated hardware based media control keys on it since it utilize the F1 to F6 keys. I'm certain the Filcos boards can do the same if they decide to implement the same microcontroller and driver in it. Also AFAIK the 7G is indeed based on Filco Majestouch Linear Force NKRO many users of both boards seem to confirm it. SS just expanded the design to features with the audio headphones jacks, wristrest, extended USB ports and media controls.
Possible but it's more likely that SS licensed the design from Filco and no doubt from Cherry. Manufacturing of the board can be leased out to any party.

if you have sweaty hands ikari is one of the best mice out there for you
the side are rubberized for a better grip and the top is covered with a shiny material that helps in reducing sweats
the grip is great for right handers
the only thing is that the side buttons cant be programmable
this mouse have a relatively high lift off distance that is ideal for swipping movements
buttons are quite soft and easy to press
cpi goes from 400,800,1600
the polling rate cant be tweak by the software but can be tweak with another tweaker (HIDUSBF)
ikari optical is design for FPS games but i do use it for dota
thats explain why the side buttons cant be configurated