I know that this would not be popular so I would never recommend it for the mod...but how would I go about getting rid of the rank fire drill (which I have already researched) and replacing it with the new "mass fire" that TROM has for Grenadiers. After reading several books inclusing Duffy's (cited by Tomsin for some of his stickied history briefs) it seems that firing drills pretty much devolved into "fire at will" after the first volley due to confusion and human nature. I know there is no way to model this "changeover" so I would rather just have mass fire all the time.
I also like the muskets firing a little at a time instead of one "boom" as the whole rank of muskets fire at once....not so immersive for me.
Anyway, post of PM me if that is better.