I'm looking to boost the speed of JandC Classic 200 a bit. I have been using it at 100 and developing for 14 minutes in PMK Pyro as suggested.

Does anyone have a recommendation for shooting this film at 200 and still developing in PMK? I don't have a densitometer so thought I might start at 17 minutes to see what happens. Not sure if this is OK as the developer may have exhausted by this time. I'm also wondering if there will be an increased stain with longer development.

The other alternative is to move to ABC or PyroCat which both bring the speed up to rated and have shorter dev times.

Gregg Brekke