Thanks for the kind words. That was 120; I don't think I've used it on 35mm. Remember that scanners deal well with thin negatives, though, so in a wet print I suspect it'd be quite challenging to get any shadow detail in the higher-EI shots.

The problem with a white dog as a subject is that she doesn't really showcase the shadow detail, so you have to look to the background to see much about the speed gain. It'd be interesting to see actual curves for this developer, but I don't have the equipment or the patience.

The recipe has been posted on APUG, and should still be at along with some other interesting things. Donald Qualls used to be a regular participant here; I don't know if he's still lurking or has moved on to other things or what.