Rodinal works fine with t-max 100. 1:100 will probably cut your speed. Try 1:50 to start. Two inversions in 5 sec for 30 sec to start. Then 5 sec/30 sec.
Use only enough to cover the film. Don`t fill the tank as the solution needs to move. Invert and twist 90 deg if you have a steel tank. Paterson will work with inversion only, but rotate 90 deg as you set it down.
I just developed a new roll of TMax 100 (120 format). This time it came out perfect. I was much more rigorous on temperature control - kept all chems in a 68 degree bath, and pre-cooled the Paterson for a few minutes in the bath (no prewet though) just to be on the safe side. Then processed in Rodinal 1:50 for 12 minutes.
Had one near disaster - as I poured out the Rodinal, the damn funnel on the Paterson started to fall out. I caught it after it moved about 1/4 inch out, quickly slapped it back on, and poured in the stop, making sure this time the funnel was locked in place.
I had to fix for about 9 minutes to fully clear the pink, but in the end the roll was perfect, with no damage from the inadvertant slip at the end of development.
Initial examination of the prints show spectacular results. After they dry I'll check them closely.
Does anyone use the little swizzle stick with the Paterson instead of inverting?
I do, except I have the Arista plastic tank (it's cheaper and the reels are a lot easier to load). And, unlike the Paterson (I think), with the Arista tank the whole post and reels move up and down while spinning (I think the Paterson only spins). I do this mainly because I lost my cap and didn't want to order another one, and my negs look just fine spinning them.