Hi Nick.

Couple of things for you. Most everything I know is on a page here, and it links you to an earlier page with my developer formulae.

Remember that APHS only sees blue. So your powerful lamps may not impress it much. Open shade works as well or better than anything with it. In fact the flatter the better as you'll get plenty of contrast in the film even with a flat scene. I rate it at ASA 3. Good luck.