It's a great flyer! First flew mine last summer. Power is an older OS 91FS - balances w/o additional weights, swings a larger prop around the cowl, and flys scale at 1/3 throttle. It easily performs basic aerobatics, knife edge, and so on. Did the first 10 or so flights using lots of left stick rudder then remembered that I have a computer radio. Then coupled ailerons/rudder, making the DR1 a pleasure to fly. Still haven't done that scale nose-over landing as it slows beautifully to an almost three-point landing.

It's an attention getter - the crowds love it!