I have 3 developers to choose from Tmax, Pyrocat and HC110.

Which do you prefer?

What EI do you use with chosen developer?

What development time/temp/dilution for chosen developer?

I currently use Tmax for Tmax100, Using EI64 and 1:9 dilution at 8:30 to 9:00 at 68 deg F.

First time trying this film. I most likely will end up using it for astrophotography at some point once I figure this film out.