RE: Best 3D ARF for a DA50?
Things are changing quickly in this hobby.
The planes that are available were all ready around when the DA50 was invented, the new plane that you have listed are more or less built for the DA50.
If you want a 27-28% plane on gas that flys like a 35-40% you will have to wait like the rest of us.
For TRUE 3d flying and safe low aerobatics a 78" needs to be 13.5-14.5 lbs, not possible with a gasser.
Hand tight, XFRC, CARDEN, AEROWORKS, are all coming with new birds for the Spring shows.
BTW, a 27% CA extra can be BUILT from kit at 14.5 lbs with a da 50, not an arf but you will be flying before the extreme flight planes are out.