I usually leave the rudders on for short distances. The other day the distance was so short (200 m) that I didn't even bother attaching them to avoid side to side swinging. The parking entrance was not much wider than the cat, delimited by some soft bushes, no problem if they touched the hulls. But ovbiously (after it happened of course) a little branch made the rudders swing to one side and as the cross bar moved to the side it entered more into the bushes and broke. Even if I was driving slow and looking back all the time, I didn't realize what was happening until I heard the noise.

I will still leave the rudders on for short distances, but certainly attached..