Have a Grimm prop balancer question how accurate it is . Thinking is off , maybe need better one.
prop ballancer
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Since I also fly quads, I use the one from Dubro. *Seems* to work pretty will for boat props as well. I do think there are better ones for boat only though, maybe magnetic?
http://www.amazon.com/Du-Bro-499-Tru.../dp/B0006N72Y8
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