So far so good! Installed the new front o2 sensor and cleaned the MAF. WB now reads just about right and fuel trims are close from what I can tell in the short period of driving I've done(within 5%).
I will have some new data logs tonight of the new OL scaling to see how that looks. Hopefully I am close if not right on to match the OL table within .1-.2 across the board. I am waiting on my MBC to show up and then to install the Wally 255 so she can be happy for a while!!