I highly recommend the Midwest lil'cap232. I just completed one with an OS 91 surpass up front. quick easy build. What I changed;two servos mounted near the rear stab for the elevator, used hard balsa to join the wings instead of the hardwood provided. Came in at 8 lbs. Will try a graupner 14-7 prop, APC 14-6 and very interested in an APC 15-4 W. Will let you know. Many of my flying buddies have the same plane with either the OS or the Saito and use it as their IMAC practice for those maybe maneuvers.