One thing that may be a little unintuitive is that when balancing your pod you don't want to have normal tires on, the reason why is if the tire isn't perfect the spot where its supporting the wheel will move side-to-side and not give a consistent number. To check the balance on mine I put some setup wheel disks on the axles, if you cant then putting a piece of something under the tire to make sure the contact point is the same side to side may be a good idea. I might take a picture later.