Quote Originally Posted by Roger Cole View Post
I agree the times for D3200 (and Kodak's times for TMZ too) are too short. I develop both for the times given for one stop more speed, generally shooting at 3200 and developing as listed for 6400. I do it all at 24C too but don't get anything like your grain!

"Over develop D3200 for grain" is certainly a viable way to get grain, but you will get a lot of contrast too which you may or may not want.
I should add that I agitate at a normal rate (10 seconds once a minute), but I do it very, very vigorously.

To the OP: really the best way to find the results, and grain character you like is to just buy a few rolls and try different developing regimens on each one. Pick the one you like the most and refine it from there.