I have a Sundance 310QB TT and was wondering if anyone had any ideas of cheap or easy way to make it more stable. The biggest problem is at night when we're trying to go to sleep. My son is 11 years old and when he's on the bunk it shakes the whole trailer every time he moves. It took me some getting use to because in our old 25' TT it didn't do that. Any ideas on how to take some of the bounce out of it?