For those who are using 8X10 print drums for their film processing, how much solution are you using in the drum?

I use 200ml when processing 4 4X5 or 2 5X7 sheets in an 8X10 Unidrum. If I'm souping in Microdol-X 1:3, I up that to 400ml as 50ml of Microdol-X stock solution can be nudging, if not downright pushing, the limits of exhaustion.

IIRC, Unicolor specified 60ml for an 8X10 sheet of color paper (carefully leveled drum), 120ml if multiple smaller prints were processed. I haven't used mine for color printing in a long time, so my memory may be a bit off.