I'd like for someone to follow-up with an answer to a statement made earlier in this thread by "serious power". Are you saying or leading us to believe that as a result of the Contra drive unit having a built-in clutch, that a prop strike won't result in any damage to the tips of a carbon prop? I guess once again, you better show me! Perhaps this is in the realm of 600+ charges claimed to exist with the new G6 Thunder Power batteries currently available that you will be able to charge at excessive rates. All I am seeking is the truth______Everette