I've just bought some APX100 for my Rollei SL66. A little change to my Acros habit. I am interested to know about timing and agitation for the 1+100 rodinal dilution with this film.
I already check the timing on digital and they give 20min at 1+100 and on the agfa page they give 17min @ 1+50 , something look strange for me.
20 minutes works for me at 1+100. I seem to recall someone mention that the Agfa times for 1+25 and 1+50 are a bit too long and give quite dense negatives.
You don't want to agitate too much - I do 15s each minute (5 inversions) for first 3 minutes, then one inversion every three minutes.
When using the 1+100 and higher dilutions, the times are not so critical.