Yeah.. I had a Goldberg Wildstick a while back. I built... ahem... assembled it - it was an ARF... ha.. sorry.. anyway, I built it as a sport flyer but it certainly was 3D capable. It was not a profile model, but a full fuselage. But it looked something like the OP's picture from the side (profile view) that is. I started it off with an OS 46 FX I believe, the one before the AX version. It flew just great as a sport plane. It had flaps.

I would fly it up high, then put in full flaps and pull the elevator to full up and it would just about flip over in it's length. It would do about three full rolls per second in high-rate. I never flew it as a 3D model.

Later on, I put an OS 50 on it and it was even more radical. Fun to fly, no doubt.

If you iron/heat-gun out those ripples on the leading edge, it would look much nicer.

CGr.