I have a Hanger 9 cap 232 sport with a Super Tigre 61. I think it is about perfect with that engine. You could use your 75 and have a real rocket. If you shop, you can pick these up for less than $130 (try Ebay). Well built airplane that is really tough. I spun mine straight in and only broke the cowl. Couldn't believe my eyes when I went to pick up the peices. I fixed the cowl with some resin, cloth and paint. Airplane is not a first aileron trainer.