Hello everyone and THANK YOU for your responses! I read them all! :-)
To shed a little light.. I work at a trucking company so I'm used to the concept of scaling each trip. It sounds like in the case of TT that's not a legal requirement (and overkill). My fear was getting hassled by a cop for not having a scale ticket, or not having a scale ticket from that trip. Without a lot of modifications to the TT or TV, or a drastic change in our camping loadout I see that a single weigh "session" will be sufficient. (agree that knowledge is power.. I wouldn't feel right about not scaling at all)
Again thank you to everyone for your tips and advice, this was an overwhelming response. I'm a little new on here but I already see no shortage of friendly helpful folks. :-)
Safe travels to all!
-- Curtis