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Not a good idea, Kevin. The purpose of checking the feather on the ground is to be sure it is functioning properly in case of a real engine failure. An un-feathered prop in case of an engine failure mean a sure trip to the dirt. The single engine climb performance is based on a feathered prop. Five decades of multi-engine flying tells me that feathering the prop on the ground doesn't harm the engine, if done as called for in the POH. (It's more important to protect the prop from FOD damage on the ground so pick a clean spot to make the check.)
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