RE: Typhoon 2 3D Coupling/Balance issues
TakeshiSkunk
The SFG's are a must for steady knife edge. Try flying the Typhoon towards you when learning to do a knife edge so you can easily determine when to adjust the rudder and the ailerons. After that, you can start flying accross the field, etc. SFG's make it really easy.
As to balancing, I added extra tail weight (a little at a time) until the Typhoon stops diving with throttle off and just floats into a landing. However, this is a preference issue others like to fly it a little hose heavy.
I use the attached guide to properly balance my planes. It is quite helpful