Tommie,

don't do it yet. My T-6 came in so light that I decided not to. Build the airframe and you can then weigh the components and see how you're doing. You'll want your airframe to come in weighing < 50% of the AUW. Ideally about 35-40% of it. I think my T-6 was at around 38% of the lower end of the weight range. Mine's electric so I wanted it light.

I'm actually in the midst of a small pattern plane build and will be taking the same decisions when the airframe is complete. Surfaces like that are easy to alter post build. Where you might want to take a decision pre-build is on the fuse (sides, top, etc.) On a HOB FW-190, I drilled the smithereens out of the fuse (electric too). The design included a 1/64" ply doubler which made the fuse sides nice and solid allowing them to be drilled out without loosing too much structural strength.

If you're interested in my build thread, you can follow it here:

http://www.rcuniverse.com/forum/m_8196707/tm.htm

There may be something there that's useful. I learn immensely from following other threads. BTW, the Deception will be powered by a ST G20/23 (a .23 sized engine). It really should have a .15 or .18...

David.