Dad's Champ doesn't have any gyros and it doesn't have an inclinometer. I know that a lot of people with similar planes just get a cheap stick-on inclinometer for a sailboat and stick it to the panel. Is there a better solution that doesn't involve serious instrument panel surgery? The panel has a spare small round opening but no spare big openings. We don't need a needle and ball, just a ball. Thanks for any tips!