"The more pellets I can put on target, the higher the probability of a fatal pellet strike."

Sounds good if the pellets have enough energy to reliably break bone and scramble things. In this article that you wrote with the turkey head X-rays it is actually quite surprising how few pellets there are in those turkey noggins considering that was a load of #8 shot. Using the standard 10" circle at 40 yards as a metric to compare results between various combinations, a good turkey gun, choke and load will score well over 100+ pellet strikes with lead #6. Tungsten patterns even tighter. That means there will be double digit pellet strikes in the skull and neck vertebrae with those #6 pellets. That at 40 yards. Better than your results with #8 shot. Did I miss what choke constriction you used?

Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats.