@JoEzI used a V1 3286 case for my franken pepsi and I had no problems with the 2.70 gasket. Maybe Clean changed something in their V3. with the gen crystal and 2.70 gasket I got the height and magnification perfectly equal to the gen. (However, it is necessary to note that even among the gen GMTs there are evident differences in the heights of the glasses and the relative magnification).
