Angier -

 

When my Cessna 150 prop was balanced, the guy replaced some screws and washers for the spinner.  He had a tray of washers and screws in 0.1 gram increments.  His magic machine told him how many grams to add at which location.

 

I guess this tells us that if we remove the spinner, we should keep track of which screws and washers went where, or plan on having it rebalanced.

 

- Rob Wolf