Double foul

[kmref]

I believe the most important thing to be discussed in the pregame is that on a double whistle the trail and center should not have preliminary signals. If the lead is going with the charge then they will sell it and the trail and center can agree by just holding the fist. If the trail's whistle is first then the lead's...eye contact, eye contact, eye contact. The official whose primary it is will sell it from there.