Gazzer,
Roger installed a fitting on the exhaust assy for me at the factory. I am pondering a pressurized system with a mechanical valve. Use an air tank with a pressure regulator. No batteries to deal with and no chance of electrical noise.

The finish on the plane is as nice as any ARF I have seen from here in the States. Great panel lines and massive carbon fiber wing spars. Flap, ele and ail hinging the same as the Kingcat, and the rudder is the typical English piano wire thru the hinge point design.
There does appear to be quite a bit of work to do though, as there are no provisions for the motor mount. I will call Michael next week once he returns from the WJM. In the pics above, the plane on the floor is a 35% Carden, so this plane is BIG.

Toodles......rb