The "new" seems to have more consistent granularity (less clumping), so appears less grainy in the print, and changed a bit subtly in terms of development timing.
I'm not certain about the recip characteristics, but seem to have been guessing it reasonably well so far. Usually a modest correction for the kinds of times I run into.
I shoot it at full 400 speed, which is really a luxury in this windy area. Very versatile stuff, but I too might have to supplement it with something else in 8x10 if the
price keeps climbing.
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