RE: Extra 300
Highlights on the flight differences between the Radiowave 300 and the 330. I noticed the biggest difference when putting rudder in during a point roll, either horizontal or vertical, planes often shift in the pitch during the roll. This makes coordinated rudder inputs during a point roll difficult. That's what I like the best about the 300. A close second is axial vertical rolls. During a vertical point roll (half, quarter, eighth,) with rudder corrections for wind, has a very axial presentation. When shifting rudder direction at the completion of each half roll for crosswind correction, the plane allows for this input while presenting the roll very well on-line.
Another item of interest is the snap exit. The 300 design has a much more predictable exit on the snap. I don't know if its the better visibility of the mid wing, or the dampening of the pitch and roll (due to it having a more neutral rudder to elevator feel, with little pitch coupling) but I found that its really easier to nail snap rolls.
Don