Hey Walter, I'm a little leary giving times, because mine are always so radically different than others. One of these days, I'm gonna do sensitometric tests against known negatives from another photographer...and realize how way off I am. But I am digressing.(posted 8887 days ago)I think the best way to get times for TP is to shoot some test rolls, honestly. I can usually fudge on the processing with other emulsions-- I know, for examply, if I grab practically any film, rate it at about 2/3 manufacturer speed, and develop it in either Rodinal or PMK at my regular dilutions, I can get a printable negative if I develop it for 8 minutes. 8 minutes is my starting time for all emulsions other than TP, and I usually end up backing off from there. Anyways I'm still digressing...
The point is this wouldn't work for me with TP/PMK. Even with Technidol, processing variances of even 1 minute make big density differences.
It is 'crucial' with PMK to keep your agitation cycles short and close together. I do about 2-3 seconds every 15 seconds. I would go 1- 2 seconds every 10 seconds if I really thought about it, because, as GH says, the longer cycling typical of other developers does not work with PMK, I know myself cuz I've ruined film that way (cycling mistakenly to Rodinal specs...).
Experiment. You've got a good base ISO to begin with. Are you shooting 35mm? If so, get the bulk rolls.
Anyways I don't know if I'm being helpful or just rambling on. So That's all for now...shawn