Well Brit, I found your theory on page one.
It to me sounds logical, and think likely right, But as it is a theory of why it works, must try it and see how it works in my guns, and compare results with a "normal' charge.
The 'problem' I have with it, is that even a heavy 'wet' wad, is much less dense than shot pellets, so will decelerate much quicker than the latter. Now, If it is out of the line of flight of the pellets, all well and good, And I take it that is what you believe happens.
But, I think we have all seen wads On Occasion striking the target at lesser ranges, (say 20 to 30 yards) and presumably these less dense 'missiles' arrive After the shot, but have continued their flight on the same plane as the majority of the shot. If the heavy wad was leading the pack, (so to speak) it would not continue to do so over a range of say 40 yards, so must influence a Few pellets.
I believe this is the key;
Said Skychief wad stays up with the leading pellets for longer, and as the wad slows down, and as the pellets diverge, when the pellets Finally (?) pass the wad, very few are influenced by bit because of their dispersed nature, In Comparison to the normal light wad which is thrust back into the shot column more or less the instant the shot leaves the muzzle.
This is "the same only different " to your theory.... and neither should detract from the other in terms of theoretical possibility.
All the best,
Richard.