I'll check the mounting screw and I think I may have a new safety I can try. The current safety is older so it is possible that could be causing it.
Check to see if the T-Rex mounting screw is loose.
Also, if you have a different safety try it.
These are extremely close tolerances
I aired it up this morning and dry fired it. Even with only 1 magnet and the spacer under it I think the trigger is to stiff for my liking. I'm going