On Mar 15, 8:32 am, Peter wrote:

What also suprises me is how bad brand new props can be, despite
having been statically balanced *supposedly* very accurately.

In my life I've purchased two brand new McCauley fixed pitch props.
Both were substantially out-of-balance as they came out of the box,
and both were fixed by a local prop shop. I am amazed the prop shop
(Maxwell) could do better given their comparatively crude tools. Must
just be skill & attention to detail.