Bob;
You brought that to my attention reference weight. I've weighed this aircraft in different attitudes Pieces as well all together and the weight remains the same. 3 Lbs 10 Oz.

YS 63 w/ OS 91 Header pipe and a YS 91 Muffler with the Baffle removed.
3 Hitec 225MG 2 Aileron One Rudder with a 94102Z on the Elevator. Hitec 81MG on Throttle. Hitec 555 receiver and a 600 Ma pack

Fuse 2lbs 12 and 5/8 Oz Loaded.
Wing w/2 225MG is 14 Oz.
Total 3lbs 10 Oz.
No matter which way you go it's 3 lbs 10 Oz.

I've also sealed the Controls with Transparent Ultracote.

Balance is off it's a tad Nose heavy so I will either add weight to the Tail Skid or shift Battery and Receiver behind the wing. The Plane is so light won't matter either way. Lateral is a little off with the Ys Mounted sideways so a little weight is going to be added to the wing. Even with the adding of Weight for balance it's still going to be under 4 Lbs.

Hope this helps