Just as a point of interest here, you need to be VERY careful with multi bolt prop hubs and wood propellers. It's very easy to apply too much clamping force to one side of the prop, this causes it to vibrate like crazy even if it's balanced perfect. If the prop is distorted end to end it will not track straight and cause vibs at lower RPM, if it's distorted side to side the relative pitch will be different and will vib at higher RPM. Paint the very edge of the tips two different colors, in the sun with the engine running up and down the RPM range you can eyeball it from the side to see if it runs true. Also if you are using a spinner, index it and balance it as a unit.