Jeff...the reality of your analysis of equating the ET's to hand-pulled target service is sobering. I don't think that I got thru a single relay as "shooter" or "score keeper" without some distraction by the ET, either. However, I do think that the Match Director, Chief Line Officer and his assistants, along with the contractors, and other administrative personnel performed as best they could with the equipment they had.
We simply could not have completed the championship without the ET's.
One of the matters that might seem bothersome from a management aspect would be the adoption of integration firing to speed up completion. Although not a bother to me, that act would tend to compromise the spirit of "seed squading", particularly where the hot-shot relay is on a higher relay than Relay 1?
But, did you notice the exceptional amount of cross-firing going on? Or am I just seeing it from a Team Berger aspect

!! Thank goodness we controlled ourselves during the team matches, but during the individual firing we logged up 10 cross-fires amongst us (while Larry is always our "designated cross-firer"

, one now and then!!).
On the last match of the last day, I failed to take a que from one of my cross-fired sighters, and went ahead and did it 2 more times in record fire

. Simple carelessness, I know...a spate of Alzheimer's maybe

...the ET's finally got me

. I like the latter excuse a little, too. In hand-pulled targets, my firing routine is not abnormal: Shoot, watch the target go down in my riflescope while concurrently reloading, recognize and center up on the downed target number, watch the target come back up, finalize a firing solution and eventually shoot again as required...all accomplished while looking down range at the target for feedback and wind/mirage-doping thru the riflescope. ET's direct my attention for feedback first to the monitor for at least 4 seconds
plus and then I'm back to the rifle scope to line up for the next shot. A distraction. So, that's my story, and I'm sticking to it.
I offer that this was the only time that I recollect cross-firing with an F-Open rifle since picking one up in 2010. Yes, I intend to watch myself over the next 6 months while shooting on hand-pulled targets. If another cross-fire appears during that period of time, I will visit the doctor concerning the big "A", mentioned above; and drop any assertions against the big red "X".
Dan