How necessary is it to include the appearance file from a mod into the OR folder if you're installing multiple mods and 2 or more have an ap file? I ask this in part b/c I've noticed that when you use the stormtrooper and clone trooper mods, you should use the ap file from the ST one or they will appear headless. Also, I neglected to place the ap file from the jabba mod in the OR folder, but didn't seem to notice any problem.

No matter what if a mod includes a 2da file they are absolutely, positively necissary. ;) By not using the correct 2da files you could easily be setting yourself up for some game stopping glitches/crashes. Especially with appearance.2da files.

(Everything might run fine then you get that new robe and put it on and as soon as you return to the game CTD!)

Unfortunately for mod users for these games they will either have to either learn to merge mod files (For the non-patcher mods) or they will have to choose between mods with conflicting files.