Great information here gentlemen. This kind of stuff gets me thinking, which is why I joined this site :)

You know, I was thinking that it would be best to adjust all (or at least most) cells in the VE table, even though some you can't collect data on like Marks' example of 400 RPM and 100 MAP; or 3200RPM and 20MAP. I was thinking it would be best to adjust all cells whether you got data in those cells or not, that way you could avoid spikes and dips in the VE table, but now ya'll got me thinking that maybe this is just not necessary or ideal to do the VEs that way. I guess really the data is the final judge, as dave stated.