I’m resting between days of the USBC and won’t describe any hands in detail. Just let me tell you the auction on one of my favorite hands of all time. I was 3rd seat both white and it went:
Cold for +590…on a hand where the opponents had done very well to bid a cold 3nt on 19 hcp! They fell from grace and didn't save in 4nt, but the doubler did have 5 trumps(!). Try to reconstruct the hand :-). More after the event is over.