RE: wing loading vs. preformance ???
I bet at 5 meters 21 oz to the sq/ft will seem too light. I did the calculation on my 3.7 meter DG800 and its wing loading was close to my 60" Higgins plane (a total lead-slead) and the DG800 seems feather light in the air.
How high a fence are we talking, BTW? Hope the flaps go down 90 degrees or close to it.