At the end of the day wing loading is, in my humble opinion, a bit overrated when it comes to light conditions. Sure, you don't want HEAVY, but efficiency of the airframe and, as Ralph says, experience may be more important. You will see less experienced pilots sometimes hang too much on their "up" elevators and slow the models down a bit too much, in the belief that "floating" is the way to fly in very light conditions. It does depend on the plane of course, but generally a glider likes to be trimmed for a good speed, this lets it "run" to get a good flow of air over the lifting surfaces of the wings (particularly when searching for lift). But (as Ralph also said), it can require over-sized cahoonas to do that with a big scalie you have invested years of your time building...
