So, hand counting is both slow and inaccurate? If only someone had known that in advance.
Oh wait, we did.
https://www.liebertpub.com/doi/abs/10.1089/elj.2017.0440?journalCode=elj%27
https://www.liebertpub.com/doi/10.1089/elj.2010.0098
I fully understand the urge to do things to improve election integrity. But doing things that clearly make it worse? Not so much.