I think he means that because the dev quantity is smaller, when the tank is tilted, the shallow end will be much shallower.

However, I don't see min-chem requirements as a limiting factor for me - for B&W I need more dev than the minima just so that it doesn't exhaust (300-500mL/roll) and for colour, I just chuck in 500mL+ then reuse it.

I've ordered some roller extensions and some core extensions that should let me do a few rolls at once; currently considering offering on a 3010 I've seen otherwise I'll buy a 2509N ($100) from joboman.