Not trying to say anything bad about Bob's tunes, and I'm sure they are great for someone that already owns a Gamo, BUT...........
By the time you buy a Gamo, then have Bob tune it and put a trigger in it($179.00) you can buy a really nice Diana(good German quality - great trigger) for the same $$$. Shucks, you can get a 34 or a 34 Panther for the price of just the tune!
They is absolutely no comparing the quality, fit, and finish between a Gamo and a Diana. The Dianas win hands down. Yes I do own ONE Gamo, but never again.
Iz