It looks like you are going the wrong way with the MAF table. It being a little farther from the engine might effect transient stuff slightly, but the general fueling and steady state it shouldn't mater. Its the size and characteristics of the tube the MAF sensor is in that matter. Leave MAF ACDC enabled, and the tip in/out stock.
From the first log I would have went 2% less the entire curve, multiply by .98
From the second log I would have done 10% less the entire curve , multiply by .9
It looks like this tube is actually slightly smaller than stock MAF housing. That is probably fine and may give you better low end torque. It could also be why it has that throttle hanging open slightly for a second or two when you let off with the stock MAF curve.
Open the scanner and add mass airflow period [TIME] to your scanner. You will setup a graph with the period values from your tune file in the Row with it. You will then populate the graph with LTFT+STFT and that will be the error you need to correct the MAF table with. you will be near 0% on both LTFT and STFT in no time.
-10%.PNG