My GB1 is the older version with solid liners as well. The weight difference between it and the new model is significant. I don't feel this one shaking around in my pocket with my movements, which annoys me.
Just set mine up with some sage peel ply g10. Brought the scales out to the liners and drilled a lanyard hole. This won't leave my pocket for a good while.
Amazing!!! My original like yours has solid liners. I really love the GB2 as well though. Great work on yours!!!