On 6/13/2012 2:40 PM, ARGOLDMAN@aol.com wrote:

While the amperage draw, of the prop) will give some indication of prop blade pitch due to the fact that as the pitch changes, either positive or negative from "neutral" and thus increases the current draw, Other than giving one some sort of number to return to, for whatever reason, it does not directly relate to the power that the engine is producing.

The amp meter is used to gauge when to stop adjusting thus avoiding popping the break at the end limits.