Answers to your Questions:
Prop - rebalanced at the beginning of the season - Michigan Sailer 16 RH 9
Here is a pic;
at 2000 RPM I am doing ~5kts (when I am not tied to the slip
Oil - changed about 30hrs ago. Shell Rotella 15W40
Fuel Filters: Raycor R24P 20Micron primary & WIX 33390 10Micron secondary.
The Raycor looks fine.
I agree that 10PSI was low. That is what caused my panic in the other thread.
Actually, this is what is scaring me now. In the earlier thread I documented 2600 RPM (secured to the dock) as maximum RPM. It is now down to 2100 RPM when secured to the same dock.