The GB2 is one sexy ass knife!
I just recieved mine Saturday, and it lives up to my preconceptions in every way. I lusted after one of these for years, all the while reading the same misinformed drivel implying it was inferior to the first one.
Pay no heed to the oft parroted whining of the difficult lock release. Everything is adaptable with some modified technique.
Ignore also, the repetitive concerns of thinner liners, weaker feel, and whatever other regurgitated negativity that endlessly loops on the internet. Spyderco knows how to make solid knife. Frankly, all the implications of it being weak are an insult to Sal.
Knife knuts spend a huge amount of time overthinking perceived capabilities and limitations, and taking printed specs and anecdotal evidence as gospel.
In the end, the only functional difference will depend on your own personal preferences. This knife is every bit as capable as the GB1, with some added benefits like a subtle gaurd, thinness, and lightness.
Personally, for ME, this is the closest I've ever been to owning my grail!
Either way, you can't go wrong!
Thx.