With Pyro, everyone has a different technique, times, etc. When I was using it, I was mixing from scratch, so it wasn't incredibly consistent. But as previously posted, I'd give it extra time because it was hard to blow out the highlights. That being said, don't take a single answer to be the true one for you. Shoot a roll -same subject and exposure through all the frames, cut it up into 3, 4 or 5 strips and develop one at a time. Try different lengths of time, different agitation methods, etc. to see what works for you -the look you like, the way you like to print, etc.