Thanks Marc'Antonio,
I understand the values now.
But what do they represent. What are acVp33 to acVp100 used for?
Do they represent "standard" scales that aren't in my list above?
If the symbols acVP27, acVp29 - acVp32 are not used for the imperial scales 16, 8, 4, 2 and 1, then have they been reassigned to something else?
I appreciate Marc'Antonio that you might not know the answers to these questions but surely AUTODESK does?!?
Thanks
S