Damon that's awesome! I had a thought the other night and wanted to ask. Although it could add some stress to the lift motor I'm wondering if the cg and the resulting efficiency of all the motors would benefit from attaching the additional cells to the top of the lift arms as close to the center pivot as possible.
Yeah shifting cog further up couldn't hurt. Good idea. Got some Velcro straps and zip ties today in case I want to try attachment to the arms. Maybe to the bottom of them though.