TT engines typically benefit from a HOT break-in somewhat contrary to what their manual says to do...this is all per the late George Aldrich...this man forgot more than most engine gurus/manufactuters ever knew!

You should run this engine HOT just out of the box, two minutes, with a 9x6 prop @ 16.5K. ...then...after a complete cool down...go to an 11x5 for 3-5 eight ounce tankfuls at full throttle just slightly leaner than the rich/lean break setting. Then, put it on a plane and watch it get better and better.

...to do otherwise will end up with different results.

...do what you gotta do.