Thank you Bill for your input. I can see now how I have been making more something out of nothing for the most part. I suppose though it would serve me well to wind off a roll from my bulk loader and do a little bit of gray card testing. I've been in photography since Methuselah finally kicked the bucket, but only here in the past couple years I've decided to set myself a pretty strict accuracy standard. !/4 stop would be nice, but 1/3 stop is a reasonable standard I hope you'd agree. Anything more just means more test stripping and foolishness in the darkroom.