I'm doing C-41 one shot now with the Kodak chemicals, but I started with the Rollei kit. If you store the developer in a container that allows you to "squeeze out" the excess air, then the developer could last for weeks, months -- some push it up to a year. So there's no need to develop everything at once, as in one session. You're better off not to procrastinate though. Each time you reuse the developer, you're exposing it to air, the possibility of contamination, diluting it more if you prewash, and just bringing it closer to exhaustion by developing. Time is one more variable that you don't need, so it's best to minimize it.
Some people adjust the developing times for each roll past the first or second. Poke around the forums a little bit.
Plastic tanks and reels are fine. It's what I use. Just clean them with very hot water after each session; the stabilizer/final rinse isn't good for them.
Last edited by bvy; 03-09-2014 at 01:42 PM. Click to view previous post history.
Reason: more info