I had time yesterday to prepare the two developers:Hypercat and 510-Pyro.
My test film is J&C 100 Pro 4x5 format and I have some double sheets exposed for the same scene. My method of development is with plastic hangers in plastic tank.
Negatives will be printed on graded fiber paper.
There is someone that gently want to share his experience for the following steps:
I will start with 1:1:100 for Hypercat and 1:100 for 510-Pyro
My standar is after 3 minutes of presoak a continuos agitation for 30 second and 10 seconds every minute
I estimated 9 minutes in Hypercat and 8 minutes in 510-Pyro
Every suggestion or advise will be welcome from users of this combo of developers and film.