We had some tricky questions on CAPE/instability which we really messed up... oopswhat is the most challenging types of questions you have been confronted with this year at invitationals/regional?
We also had some questions on the times of year in which certain storms/phenomena were most like to occur
However, the hardest question was probably the tiebreaker:
"What did M. Albert Stiger use in his attempts to suppress hail?"
..to which we answered "He used his words and wrote a letter to the hail asking it to stop"
We got third place in that competition... probably beat fourth place because we got the tiebreaker right :^)