First of all, it needs to be made clear if it hasn't already been, I believe this thread is about lubing for bullet seating, not for resizing.
AMP made a press that measures and records pressure through the seating operation and displays it on a computer screen. This was the next logical progression beyond 21st Century's arbor press with the hydraulic pressure gauge that displayed real-time pressure during seating. Now we have more data from AMP's press in the form of pressure curves for seating the bullet of each cartridge displayed on a graph. The original idea was to sort cartridges by seating pressure so as to obtains the smallest groups by using cartridges with consistent seating pressures. Lube is the next step, attempting to equalize the pressure curves generated during seating.
If you have all the available data, this is a worthwhile pursuit. If you're flying blind, just imitating what people are doing experimentally and hoping to obtain a benefit from it, I think that is wishful thinking.
There is scarce data that shows any annealing process improves results on target. Using seating lube alone without annealing might very well obscure any difference that annealing makes that has been measured to date. Combining annealing and seating lube is worth experimenting with, but I am skeptical that it will produce a conclusive advantage. It will sell annealers, presses with pressure transducers and lube though, no doubt. As far as the video goes, the data set is far too small to draw any inference.
Don't forget that we've already tried Hex Boron Nitride. If seating lube was going to make a difference beyond just what we see for the plot from the seating press' transducer, HBn would have shown it on target long ago.
