You are correct Zane777.You don’t miss any adjustability…. For gen1 and Gen2 ATx, you will have to use a Allen wrench to adjust comb height and LOP.
In addition there is no visible difference between Gen 1 and 2. There are only minor changes which make assembly and disassembly of the chassis easier. These changes also transfer over to the Remington 700 AICS, we just released, as well as Tikka and Anschutz we will soon release.
The difference in Gen 3 is the single thumbscrews, for Cheek Piece and LOP, replacing the Allen screws. This change was a direct result of user feedback from early production testing.
Again the single thumbscrews will be on the AICS.
Tom Irwin
Accuracy International