With my hot dipped minne' bullets, the bee's wax does not make harder loading, it slides right down, and with subsequent shots, as the bore becomes fouled/smaller, they load the same, effort-wise. I believe any excess wax just shaves off, or displaces, and maintains zero windage.
With those bullets, I've obtained the best accuracy yet with any bullet or slug, and they are quite undersized for my bore, the bullet/minne' being .575", and my bore being .580" at least. But, that might not be a good comparison to what you are doing.
When initially placing them in the muzzle, requires some thumb-pressure, but not that much, once in the muzzle, then it goes down with little pressure/force. (clean or fouled barrel)
I think, but could be/might be wrong, but lube will eventually migrate up the tube, two tubes or one. I know it does on my early paper revolver cartridges that included a lubed wad, inside the tube. How much that effects the powder, I don't know. It's probably minimal. However, I do know that a lubed wad will, over time, effect the powder quite a bit.
For sure, make up a few hot-dipped without lube, see what happens.
Again...good luck!