fyi. i use the following for diafine with good consistency and results:
5 mins pre-soak
5 mins in A, agitate about 3 times, each with 5 agitation
5 mins in B, agitate about 3 times, each with 5 agitation
What is different is I dilute my A and B solutions, 1+1. And I use it as single use, ie. i do not reuse.
the following iso are:
100, 200, 400, 800, 1600 and 3200.
i use tri-x around 800 - 1600.