Cargo,

Very interesting...

Are you using the NAP replacement slide? with your Rest?

Reason I ask is that the bows are setup with the BT slider which has a minimal amount of cable clearance. When you try an aftermarket slider on the new bows, it will pull the cables farther away (towards the rod) causing more torque in the system, and could be causing things to be " farther out" .

Could be other things too, of course. I guess if the bow is shooting for you like you said , chalk it up as a mystery don' t mess with it!