I understand I might need to change to 6S, however, I have the 5S packs and wanted to try them first. I have talked to people flying the Osiris from 3D hobby shop on 5S and its a rocket ship, but you have to find the right prop. Weights are within 1 oz of each other, so we'll see what it does. If I have to go to 6S, I will, but my goal is try to make it work with my current 5S packs.

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