About three years ago I purchased some Menards "O" gauge tubular track. It's appearance did not come up to what I had been used to from Lionel and K-Line. In that purchase were 30" straights. That was a mistake on my part. They were too long to be useful for my purpose and cutting them was not the problem, but the rigidness was. I cut them in a jig and once cut they lost some of their rigidity.
So I had two full cases of 30" straights that I had not opened and tried selling them. They went to the buyer and he complained so loudly that I had to refund his money and pay for shipping back to me. I did not want to risk a blemish on my Ebay rating. His argument was that the track would ruin his locomotives. Anyway, I only use Williams or Lionel tubular track nowadays.