I would definately recommend the Extra/DA100 combo. Wingloading calculations are good when analyzing planes of similar size but when you compare a wingloading of a 50cc class plane to a 100cc plane, equal wingloading doesn't mean the same. There's an aerodynamic term for it but I can't recall it at this time but in a nutshell, the larger the plane, the larger the wingloading can go (oz/sq inch) and the plane will still fly very light. A good example of this is a foamy that falls in at about 5-6.5 oz loading and a 40% plane that will fly EXTREMELY light at 30-33oz.

So to recap, if you can swing the $$ sillyness, then go bigger if not the Yak will be a terrific plane for you.

..........Mark