Just a view from seeing the new scrum process evolve over the course of the season up here. At the beginning of the year the cadence of the Crouch, Touch, Set (pretty much how you just read that in your head was how the ref was saying it, only with a different accent) was very natural and it did seem to be faster. But as we neared the November internationals a silent pause phase started to appear in some referees calls.
By the time we hit this years 6Ns the silent pause had evolved to the point where there is little different to the old crouch, touch, pause, engage process other than the Ref doesn't actually call pause. With this silent pause phase there seemed to be more and more early engages at scrums as the front rows try to anticipate the set.
I was disappointed, although not surprised, to see that the Super Rugby season started with the same cadence that is now established in the NH also. Not sure if it has anything to do with it, but earlier in the season a new crop of referees were in charge of the earlier rounds of the HEC and they had a very natural cadence in their calls. Now it's like the Referees are calling it Crouch, Touch, <pause>, Set with the pause said in the Refs head and the old problem of varying lengths of the silent pause phase.
When I saw it in action at the beginning of the season I was hopeful seeing the natural cadence making a real difference. But this evolved process of calls is no different to the old one now, unless they go back to the natural cadence I can't see it making any practical difference. All the old problems are back again plus the early engaging due to this silent pause.