Guys I just weighed in to see if I'll be okay for the Nats.
With my new Power Unlimited 4600 mAh 5S 25C packs I make weight. Around 4980 grams.
This is without any special modifications or removing of anything stock besides the wheel pants on the plane.
At the Nats we are allowed up to 5050 grams and the Intermediate and Advance fliers get a higher weight allowance around 5200 or so.
The plane has a very substantial wing area and thick airfoil and flys light and nimble.
As I get more flights on mine I find I like the CG aft. It rolls easier.
Thanks, Mike