The reload system is what I’ve planned to use if I need to redo an auto-battle. I haven’t needed to yet, although I’ve been ticked a couple times when I felt it was unfair. But, I’m not that good a player and usually have to balance a not-great result (i.e. I lost units in a safe battle) against whether I’d struggle up to a better result or not. Usually I roll with it.
As an aside, and typical of me, I tend to be #1 in Unity and near to last in every other category. I really must work on that if I’m ever going to win in PF.