Stacy King wrote:
Of course, in a DE setting, all this talk of pit-out procedure is moot if everyone would show up to the grid ON TIME!!

That only works for the start of the session and should not be relevant. You have to have a manageable way to safely get cars out onto a hot track. If trains are forming, an instructor just wants their student to pull in for a minute, driver feels something and wants to pull in to give car a quick once over, and several other reasons. You will always have someone that will come off hot grid onto a hot track.
I agree with Vincent. I'm looking over to the tower and the bottom of it as I go towards the kink. Someone is giving you the "push over" signal to let you know a car is entering the track. I think VIR staff is very good about that. I'm not aware of any club I have run with that does not have a worker there to do it.
I see two issues with entering a hot track. First is when the car on track and on line arrives at T1 with the car entering who is off line. Both drivers are where they should be. But one has to give right of way to the other. We do not go 2 wide in T1 at a DE. If the two drivers communicate there is no drama. The other issue is the one that should get someone black flagged and a visit to the principals office. You enter track and decided you're going to move onto the line. You force the car coming down the track to do any type of evasive maneuver. You are the problem.