Hi James.
The vibration isn't too bad, about the same as my pals Swallow EX / YS110 set up, have used the standard glass T mount however, I have strengthened the motor mount box on the plane significantly, in stock form it just did not seem stout enough to take the punishment of a 30cc four stroke. Still a bit unsure about props, the 16x8 is giving 9500rpm, which according to thrusthp is 3.2hp for 17.5lbs static and 73mph, the model weighs in at 10.6lbs all up dry, the thing that confuses me, is a prop such as a 16x12 would pull the rpm down so much, the motor would not be making anywhere near it's optimum power, so why are they used?
Cheers Martin.