Tube processing...what is it?

I've used this method and like it, but I found using the fibreglass screens between the back of the film and the tube often left faint marks on the back of the film. I use 1 1/2 inch tubes.
My system was made from PVC tubes as well, but didn't have the chemicals in the cap - I just poured them in and out in the dark (which it now appears wasn't necessary) from pre-measured flasks at the ready.
My biggest problem was that I could only do 2 sheets at a time, one loaded in one end and the other film in the other end. I've since switched to a Jobo tank and reels and can develope 6 films at once.
I thought about roughening up the surface of the tubes using epoxy droplets in place of the screen, but never got around to trying it.
Best regards,

PhotoSmith said:

How critical is the consistency of the "log rolling" for even development? If you are processing 6 tubes at a time, it seems like it would be hard to have tight agitation control. Do you get even development and consistent contrast results?

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As JBrunner said, the water the tubes float in randomizes the process somewhat. Additionally, I flip my tubes and change their order on a regular basis. Essentially, I take the front tube and flip it end for end and move it to the back of the line every 15 or 30 seconds depending on how many tubes I am doing. This ensures that each tube regularly reverses direction and that any inconsistency introduced from the position of the tube in the line is minimized.

I think I will try to do my stop and fix "in vitro" and see how that works. The two biggest issues I currently have with tube processing is scratching them in the fix tray and losing track of which negative is which if some of them are of the same subject.