Dan, Can you check your assy manual to see what could be holding it down? My 57 had the 2 straps and that was it. Not sure if our tanks wold be the same set up though. Good luck!
The coldest winter I ever saw was a summer I spent in San Francisco M. Twain If at first you don't succeed...skydiving is not for you! If you don't like my carbon foot print, stick it up your Prius!!