Thanks for the advice. Natetheskate called it right.
Took both tanks off and brought them to the local propane company. One was down 10 lbs, the other only 5. Filled them up anyway.
Visited camper store where I purchased the trailer used. Very nice people. I brought in the regulator but man at desk felt that was not it. Discussed the tests that I had done (Stove works, Fridge works, etc.) Man called his mechanic out front, I described the case to him. Without hesitation he said "Computer Board". They also wanted me to light all three burners first and see if there was any drop in the first burners flow as the others were lit. Purchased new board $140 ouch, just in case. They re-sealed the computer board box and were willing to take it back if the stove test failed.
Got home, tanks back on, regulator back on. Turned on stove burners, 1,2,3 no decrease in flame.
Put new Computer board in, one set of clicks on start up and there was no looking back, there was heat!
Talked to my neighbor who has an airstream, he said this is common problem. He said sometimes he brushes the board contacts with a pencil eraser and gets it to work again... I will try doing the eraser later, but for now, I will use the best, and save the rest.