It seems to me that such instances occur when partners are in too much of a rush to give the scondary signal on a call. In NFHS it seems relatively easy to avoid blarges, etc.
From my pre-game: I expect a couple of double whistles, tonight. They will be in the right place, at the right time, for the right reason. We will have no blarges, tonight! I am imminently patient with the secondary signal, when we have a double whistle.. I can stand with my hand up until the end of the game, if need be, so that we communicate before we give the secondary signal! And, in most cases, the call will go to the official with Primary Coverage on the play.

This conveys the important message that I trust the judgement of my partner(s).