Normally, I only have my LTFT's enabled while tuning VE. Have them disabled while doing MAF tuning and after tuning is done. Never an issue with WOT PE/AFR that way, obviously, but aside from VE tuning, for what other reason should I keep them enabled?

I had to richen up the tune a bit since adding a 4" intake tube to take advantage of the room I have after doing an electric fan conversion. It wasn't way off, but I did some tweaking anyway. Right now my LTFT's are + or -3 or less, MAF is 1% or less, and STFT's are generally + or -2 or less.

Is there any disadvantage to having the LTFT's disabled?