I have also posted the same question in Giant Scale forum for the same plane 1-2 weeks back.

I am also interested about the plane, Jeff seen the video and good flying, can you comment on the overall performance, like knife edge coupling, good for IMAC, 3D.
Snaps, spins?

How is the vertical with DA50?, can tuned pipe installed and weather there is a need for it?

Any info, comments, pictures would be great.

Finally how does it compare to WH Extra if you have flown one, and possibly with EF YAK 87" if you have seen flown one?

Thanks,