O-EM batch size (per class)

Ah fascinating! Yes – we will update the logic to support < 100 class sizes! One note: have you tried running 3D class on non-subtracted particles but using a focus mask? With a focus mask supplied, our 3D class masking procedure effectively replicates particle subtraction, but may work slightly better if your subtraction is not well aligned.

You can refer to this thread for some discussion on this: