Not using it any more.

[Adam]

My problem with the stop sign is that it comes across as dismissive. We talk all the time about how coaches should not be allowed to show us up, yet this signal does that very thing to the coach. Geese and Ganders come to mind here.

I've had much better success speaking quietly to them and letting them vent (appropriately), and I've witnessed good veteran officials do the same.

If your association wants you to do it so you have something the video will catch, so be it. I don't need that, as my report (every T gets one here) will be good enough for my assigners.