My BENs are around 1.00X in most cells with the worst one probably around 1.01. If I get a chance tonight, I'll post a screenshot of the VE. It is not perfectly smooth (never, ever smoothed it) and the car performs flawlessly and the LTFTs values are all exactly the same -1.51% by design in closed loop.

It takes literally hundreds of miles of driving, logging data with multiple VE iterations under controlled conditions and then using the filter to glean the data. My approach is to fill the entire BEN table with lots of counts in each cell and make a global update to the VE. Rinse and repeat until the BENs start coming up with values like 0.996, etc.

And no, I don't tune my MAF with LTFTs. :wink: