For a 72" 26-27 oz is nice, 22-24 oz would be medium light. I think even 31 oz is still manageable. My little Global Raven 40 had a wing loading of about 30 oz. It was manageable, no real bad habits at all. It has a lot to do with set up I guess ... careful with the CG (slightly nose heavy) and elevator throws (not too radical) and some wash out for the ailerons (aids in landing, less chance of tip stalling).