Greg, my interpretation of, "good low end power" is when you're doing a slow flyby and it becomes a little too slow, you add one ratchet notch of throttle and the engine responds cleanly with no stumble, hesitation etc and the plane continues to fly merrily along with no discernible increase in the planes speed. A Telemaster practically demands that kind of engine. This is when you'll know for sure that the LS needle is set correctly.