Hi Ragz,

My Darco is waiting to roll out.
A few guys in our club fly with it which is very stable.
I've seen Jetcat P-80, PST, Artes Eagle & Rino mount on this plane.
All those guys use the canards & no hunting were noted.
We don't meassure CG with the location of main gear as reference.
It seem to be some variation with different planes.
So we use the back of fuselage as reference since the fuselage is molded.

I think Behotec j66HP is OK, provided you take off from concrete runway or grassfield with a little bit long runway.

Best regards,
Alex.