Well with my Schenck I could probably measure that ....but little knicks on the compressor blades do make reasonable adjustments to the balance of up to 3 to 5 gram/mm. We balanced my Simjet 700 to .04 gram/mm on both ends just to see if it could be done...this was done by just scraping the dull casting on the compressor with a exacto blade to make it shiny a couple of scrapes at a time..this was measurable so that sort of measurement is actually achievable.

Mark Kyle