I like the larger button with the addition of an on/off switch. God forbid a button break on anyone, but that surface mount button looks very easy to replace. I also like the idea of an on/off switch where the mech grand button is. Sort of an homage to the old school. Of course, if the 3 push on/off option were available, that would fine too. TBH, I'm going to buy one regardless, even if you do end up using the little recessed nub (in which case I like the cone recessed nub more than the slot). I'm just curious, how many other buttons are you playing around with?
In regards to the increased capacity for cranking out metal mods, and if this isn't too personal, did you find a different machinist with more time on their hands, another machinist to turn out units in tandem, or maybe buy your own CNC equipment? The availability has defiantly increased (awesome), and I have a feeling that it wasn't due to decreased demand. It makes it easier to sell your mods for you when I don't have to say "You'll probably have to sign up for notification as he is usually out of stock." Either way, I'm glad for the increased availability.