In 40 to 60 sized models I find lightness and power are best (less than 20 oz/ft^2 is real nice).

I have no experience with the big Extras,etc. but you can tell wing loading does no scale linearly (I think it goes by ^3). A 28 oz/ft^2 Extra just seem to float in whereas a simularly loaded 40 sized model seems to drop in. My heavy 89" Dynaflight Decathlon (32 to 34 oz/ft^2) flies nicely with the correct CG.

Good discussion except for the SPAM stuff!

marcus