I have been working on designing / scaling 3D aircraft. I have flown a few that have a very nice floaty, forgiving quality to them. So I developed a table based on the weight class of the airplane and what the wing loading ought to be. Check it out and see if it agrees with some of the best 3D planes you have flown (single wing). Weight is in ounces.

Weight Squares Oz/sq
512 2200 33.5
256 1400 26.3
128 900 20.5
64 600 15.4
32 418 11.0
16 330 7.0
8 250 4.6
4 200 2.9

I am particular interested in the 60 and 90 class 3D stuff. I don't have much experience there.

Thanks,
Larry