Thanks, everyone for your suggestions. I was so grouched about the overexposure mistake that my brain shut down, and you've helped to kick start it again. At this moment I'm weighing the following...(posted 8159 days ago)The suggestions to make some overexposed test negatives is well received. Thanks.
I normally develop by inspection, using a Pat Gainer vitamin C developer for my larger negatives. (Yep, Nigel, that's 8x20 inches). So far, I have no experience using Pyro when developing by inspection.
Greg: have you developed by inspection using Pyro, and how would the image look, compared to traditional chemistry? I'm concerned that the Pyro stain might not be easily interpreted during inspection.
I'd also forgotten about the extremely high shoulder on these films (thanks, John); yours, Petes' and Nigels' suggestion to develop normally, ignore the extra density and print through is a practical one. It reminded me of another tactic that I've used in the past... good old Farmers Reducer. The right concoction (can't remember which one at the moment, got to check the books...) will correct for overexposure, rather than correct for over development. That ought to make a more "normal" negative.
We'll see how it goes...