"Are there opinions as to what is too short? Thanks."
Yeah; if the necks are too short to retain a bullet you'll need to toss 'em.
I have since gotten better.If you took .008 off the length when deburring and chamfering, you WAY over did it.
They are not too long, but that is not be what I would be worried about.
Cases need a light deburr and chamfer, If you take even .001 off the length you way over did it.
Most excellent. Live and learn.I have since gotten better.