S!
Ever flown with AI controlled planes in close combat escort formations? The AI always seem to cruise faster and you can't keep up even with the throttle at full? Try for cruising a setting of 70/70, 70% throttle and 70% blade pitch, depending on how you've trimmed and equipped the plane the numbers change and o.c. it's also depending on your own style. Only use 100% prop pitch when in combat or in need of full power. Lowering the pitch also helps in landing. On take off with heavy load you can also lower the flaps for lift.
If interested you can also ask questions at our forum
http://www.322squadron.com
Picture of the MkIX of the Dutch Historical Airforce while serviced at her home base attached. Currently she's flying with the rounded wingtips but can also be fitted with the clipped.