msouth12...

You'll love this plane. It has a favorable range on the CG. Anywhere between 4-6 inches works fine. I personally have mine at 5 5/8". It flys nicely there and is still very easy to land. I try not to add any weight and move the battery to get my CG. I have to move the batter to the rear of the canopy area to get it to balance there. I'm using the 82. I think the YS is about the same weight.

Good luck.

Thanks
Barry