Got it. Wonderful knife. Good looks, solid 'thwack' when opening and smooth disengaging of the lock. The detent feels ok. I like the thinner handle. The GB2 is slightly larger than the original first version: I like that. Provided the blade with a custom deep carry Ti clip. I don't (generally) like those high ride clips. I live in fear-for-weapons Europe so I like my knives more concealed. The jimping on the linerlock looks a little cheap. The GB 1 has nicer jimping IMHO. The access of the lockbar is not easy, but that is the same with the GB 1 and the Air.
My 2 cents: wonderful knife, more appealing than the first version and because of the lighter weight and thinner handle more pocketfriendly. Definetely and user, keeper and good update of the GB1. Both Sal and Gayle, thank you realizing this knife, I wanted this one for long.I will carry and use it proudly and with joy, love the M4!