You can do more or less exactly what you want by making your secondary load MAFMAP and tuning using VE table 2.
I'm not interested in mafmap and using a ve table, The whole point of using maf was because all you had to tune was the transfer function and you're done, set your commanded lambda and away you go. And it has worked very well like this for my different setups.
I tell it to target lambda 1 it targets lambda 1 reguardless of airflow. Like I've already stated I think trying to use a ve table to do corrections isn't the way for it to be done. That means something else is wrong in your setup.
More then likely before people that have had need to tune the low airflow region is because of improper injector settings. Fuel injector settings have to be correct for maf fueling to work right. This is how I found out my rx7 460cc injector dead time isn't 1.2ms like shown in diyautotune base map, (which I appericate they had a base map for my car) but is very close to .75 ms. With this fixed my setup fell right into place. Also my Speed Density setup also became easier to tune in properly and I can stick it around stoich with a nearly flat VE table.
I think the big issue is that people don't realize is maf and mafmap are different in the way they act on the fueling alogthrims. If you want to use mafmap fine its there use it, but I don't have a need for it and don't care for it.