Scott, the YS will definately haul the plane like a bat out of a hot place. Congrats on a good choice of powerplant!
I'm not too worried about weight, the tail feathers are the lightest I've had on a plane this size. The finished items, even before sanding feel like uncovered foam cores in my hand [&:]

We'll definately compare flying notes, like you it'll probably be 2 months until I'm in the air myself when summer comes.