The ships having to remain on their stands in tourneys is a bit of an odd ruling, especially given the range of ship shapes colliding. It sure is amusing to picture using 4-6 pegs to get a falcon up and above the wings of a Tie fighter! What if you don't have that many spare large ship pegs with you? You're in big trouble then
I have only had the opportunity to play in the Kessel Run Tourney and I do not recall reading this ruling at that time. I also find it odd since they do not supply extra pegs.