I was talking to a friend of mine and he said there was a company called Lippert that manufactures frames for trailers. He also said these frames can be defective. I did a web search and have seen some evidence of this particularly with the Cougar line of trailers. It appears Montana frames are made by Lippert as well. Is this cause for concern? I recently purchased a 2005 2980 RL but havent seen anything that would be a problem.