Hey Mike 2002: Try to avoid adding useless weight if at all possible. Another option might be to move the motor forward on the mounts, if there is room. Or move radio equipment, IE servos, battery, rx if well padded, forward. I personally like to keep the rx as far back as possible because it seems rare to see the tail of the plane get destroyed in a crash. But if it's well padded that 1/2 oz or however much it weighs, moved forward as far as possible, inside the fuse. might be just what the rc GODS ordered, and adequately protected. If you absolutely have to add unusable weight, I have gotten stick on weights from the tire store where I buy my tires for free. I put them as far forward as possible. I've used cable ties, and tied them to the motor mount, or epoxy, and screws to mount them on the outside of the firewall. The cowl cheeks and motor make them hardly noticeable. I wish you good luck! Always glad to help if I can. Garry