2006 330 Express with F250's & 4 blades 16" pitch. 2,200 hours and counting.
I cruise at 4,300 RPM's doing 22-24 knots. Maybe 4,400-4,500 if I'm heavy with full fuel.
I do not like running at WOT (5,700 RPM) and do so once in a while just to be sure it can do it.
The GPH at WOT scares me!