For the sake of pedantry Lee, you can make an analogy between the early engage as current and the early shove, which existed in the pre-form scrum days. If I remember correctly, a drive before the ball was in the scrum was a FK.
In those days it was more a case of watching and timing your shove for just as the scrummy put the ball in to best improve your chance at the strike/disrupt the strike. These days, its timing it with engage.
That being said, its a completely different beast to what we have with the power hit; which involves the front rows trying to a) secure a good bind and b) win the battle for ascendancy over their counterparts all while hurtling at each other with enormous force.
Very good.
One mentioned some of these matters at the end of post no. 146 of this thread and about a dozen times in the past. There will be sanctions against early pushes if the power hit is outlawed, but they will be about only half compared to the current early engages with the power hit as front rows try to win the race across the short distance.
But with the power hit being outlawed, as it should be, literally, since there is a law against it, you will see a credible tunnel between the front rows that has not been corrupted by the feet of the 6 men moving all over the shop from the shock of it. There will be no excuse then for referees to close a blind eye to crooked feeds. I don't blame them too much now because the damage was done by the generation of referees before them, who probably retired thinking what a grand job they had done.
Then the hooking contest will be reborn.
You are right in indicating that old front rowers in the NH (such as Phil Vickery and Brian Moore) have deplored the incidence of collapses from power hits - as one has mentioned many times. Let's hope that they help to get the IRB to outlaw the power hit instead of trying to manage it. This has not worked.
Again, as mentioned a lot of times, old front rowers should be consulted before scrum ELVs are formulated. If there are any folks that can work out what the unintended results of a change will be, it is them.
Maybe a law change is not needed, just a crackdown on the law that prohibits charging in at scrum time - plus a regulation that players must push forward when the ball is put in, because the law doesn't really say that at the moment. After the initial hit though, wheeling by pushing one side of the scrum more than the other should be allowed so long as no prop (and especially the defending THP) moves deliberately backwards.
A real hooking contest, crikey, as they said in the old TV ad:
"I'd like to see that."