I thought X50 was a 5150II anyway, and the mod button 'on the back' was to get a popular mod that people did to their 5150II's.
Comparing X50v2 (2.3) to Psycho A is worlds apart, but comparing X50v2 to Psycho B (without X50 mod on) makes them almost like-for-like.
The same with Revalver, I...