I can vouch that Hutchings PMK has no issues in a Jobo, I have no experience with other Pyro Formulas..
Sandy King has mentioned to me that his formula works well in a Jobo , but I have never tried it.
Originally Posted by Michael R 1974
It is not a rumour. It is relevant to the use of older formulas. Some modern staining formulas work well, but others might not. Testing is required. Streaking due to aerial oxidation can be a problem.