HELP!! I have owned this 25ft sandpiper for one year and it seems to be literally being bounced apart! every time we opened the door from a trip something is broken. for instance our wardrobe hangers stripped out of all ten screws and another time the bed hydralic arm snapped off. we dont overload it. could it be too light, short? would a hitch pin stabilizer help? we love it but our old dutchman (27 ft) never did this