I came across some note from last year's check of my prop balance.
With a special Hartzell Compact CS prop at flat pitch on my IO
320
RPM IPS Angle
2000 .04 204
2370 .03 176
2600 .05 114
1200 .04 211
0800 .06 282
The balance varied a small amount and the angle (for plotting purposes)
varied quite a bit. I don't remember if there was much
wind.
Grayhawk