BigDawgwill44,
If you ever return, good luck in your search. When I got started looking for a TT, I went to a forum that popped up first on my search. They directed me to their library for more info and found this formula to help get me started.
http://www.rvforum.net/joomla/index....owing-capacity
From there, it turned into and obsession for about a year trying to glean all the info I could from lots of sites. It's been fun and we are almost there to purchasing our first TT.