With most pistol loads.........
a short or long case is not going to hurt that much........
since you are doing a taper crimp on the case........
and not a roll crimp on the bullet.

Now in a 38 or any revolver load putting a roll crimp on to a bullet
that has a cannelure or certain area to be crimped, a +/- case
could cause a slight problem.

I just think a lot of people "Big Deal" this +/- case thing.