<< Dave, you are so right -- but you remind me of something I forgot when
listing variables: how you put the emulsion on the paper! >>
Yes, I do remember you mentioned that to me, either offlist or in one of the
notes that you sent me.
This "variable" is probably very hard to handle to controlled testing the
human factor is so high and since we are not machines, we cannot be that
repeatible. :( :)