I have 500ml Jobo tank and I always develop one roll at the time, because I tend to develop as soon as I shoot it. I'd fill the tank with 500ml of liquid. I realized I'm wasting chemistry, so I better wait a bit and develop two at the same time. Now, for the first time, I have two Tri-X 35mm rolls undeveloped, and I want to double check if I have to do anything different in this case? I'd usually follow Massive Dev Chart, so for example, if it suggest 5:30min at 20c in XTOL (stock), do I have to do the same if it's for the one or two rolls?