I put some lead in a small cup and measured it on a Postal scale at 35g.
I then put this on each scale after they were Tared. Each one was close. One was 33g, one 34g and one 35g.
The small scales are so sensitive that that small of an error isn't bad to my way of thinking.
My unit came with certified accuracy for each scale. I am also running V.1.4 now.
I'll look into something else for the problem. It MUST be my measurements.. ??