One thing to consider. Jamming a bullet to the point that you're camming the bolt closed with some force has the potential to gall your lugs.. Make sure they are well greased and the lug recesses are clean
My suggestion would be to take a more controlled approach to finding your optimum seating depth. I'll be willing to bet that there's more than one node that will yield similar results and not be at the extreme limits
It's not a problem. I only did it by mistake and don't intend to play the bench rest jam on purpose. I like field cartridges to slide in nice and easy in case I need to do a burst of three or five.