I think you might be able to assess how much additional trigger pull force is due to the Super Safety with this procedure:
Dry fire and cycle the action a couple of times with the cam in the auto reset "Super Safety" position (middle position if a dual mode cam). Just press and immediately release the trigger for each cycle; there's no need to hold the trigger continuously to exercise the auto reset. The important thing is you must finish with the gun cocked after a good and long release of the charging handle to, hopefully, accurately simulate the dynamics of the BCG during actual firing.
Now open the action at little at the rear takedown pin, pivoting the upper on the front pivot pin. Observe the position of the Super Safety lever. This is the lever's "ready" position. You can assess the Super Safety's contribution to the trigger pull force by pushing the hammer down a little using a support hand finger to, disengage the hammer and sear surfaces, while you squeeze the trigger with your trigger finger. You should see the lever move forward toward the hammer a little and also observe the cam rotate a little. The trigger force you feel is the Super Sear's contribution to your trigger pull, I think.
You can reposition the lever manually and try it multiple times but, when in doubt of the lever's position, just close the action to dry fire and cycle the charging handle again. It's worthwhile to do the above check several times with the lever moved slightly from its natural ready position. You should not feel much change in the trigger pull (again, with the hammer depressed slightly with your "support finger") when the lever is positioned a little aft of ready, but the resistance will suddenly increase with increasing distance at some point. When the resistance increases quickly, the lever has moved enough to rotate the wall of the cam surface into the rounded trigger tail surface. If the resistance grows immediately with the lever barely aft of its ready position, you don't have much margin.
Having too much lever to cam slop and having too much material on the rounded left side of the trigger tail produce the same symptom. Unless you have an example of a working Super Sear and know what lever angle to expect in the ready position, or if you know how many degrees of "slop" is normal, I can't think of a test that will positively identify the exact cause of high additional trigger weight.
Maybe Tim or others have some ideas about how to obtain a root cause diagnosis! I think this procedure could be repeated with shim stock trimmed to fit into the lever / cam dovetail slot, thus reducing slop while looking for an improvement but, again, I would expect an improvement--even if due to a surplus of material on the rounded trigger tail surface.
Edit: The trigger pull while holding the hammer down will also include the weight of the trigger return spring, which may or may not be terribly significant (JP Enterprises yellow spring--not very significant but Mil-Spec spring--maybe significant.)
