i've been experimenting with this lately, it prints so beautifully, one test i did was developing 2 rolls (one shot at 500, the other at 800) in the same tank for the same time to get some visual data (i dont have a densitometer, i just judge my negatives by how easy they are to print & how the print looks)... for this i used xtol 1:1 for 14 min (it's between the recommended times for 500 & 800) the results are that both rolls make for easy printing with #2 filter on my condensor enlarger, there is just ever slightly more grain and perhaps highlight density with the roll shot at 500 so i think it could do with a bit less but the 800 roll seems just about right.... regardless this film seems to have a good development latitude and i dont think a 15% time error should cause a printing disaster..... even though i hate the way my prints scan and look on the web (compared to the original) i have a scan of one print from the 800 roll on line if you'd care to see it:(posted 8279 days ago)http://www.photo.net/photodb/image-display?photo_id=399441&size=md
i'm moving on to 1600-3200 testing now as i cant ever recall getting such great tones at 800 with other films, best of luck to you
joe