Well ... since he has piped in, I guess I shall say "Thank You" to another extremely knowledgeable Tuner/Programmer.
One of the "gotcha's" that plagued me was after the 2-Bar MAP sensor was put on the vehicle, I did not know about the MAP Scaler parameter. Chatting with A.J. about my situation, and the fueling problem I was having, he almost immediately homed in on one of my problems. He asked me had I scaled the MAP sensor to the new 2-Bar. {crickets} So, after he delivered a method that looks like it fixed my gas tank gauge (It is no longer pegged full nor empty), I set the MAP Scaler to twice the stock value and I read atmosphere. I hadn't even checked the Static MAP value. :*(
So, when I am done, you will see a detailed list of issues resolved and gaffes on my part to be avoided.
Hope it helps someone ...