On Sun, 27 Sep 2009 06:40:48 -0700 (PDT), Evan Salant
wrote:

I have read conflicting recommendations for take-off power in a M20J.
Some people seem to suggest that it's best to reduce MP/RPM to 25/2500
after 500 feet, while others suggest full throttle/2600 until cruise
altitude reached.

Any thoughts ?

The MAPA Safety Foundation Proficiency Courses teach to use maximum
available power, at or slightly above Vy, to at least 1000' AGL.
--ron