scottrc,

Thanks for the experienced answer. I've been told by friends that if you ask enough people about a problem that eventually you'll find someone who had it before and they'll have the solution.

I have no experience with KITs or ARF. Which did you use? Can a fellow reinforce the ARF version easily enough to undertake the project?

I had an idea that the structure of the plane was in question and that the vibration problem was the reason the 4c wasn't recommended. I also thought it might be possible to install some sort of shock absorbing system, but had no idea what material to use.

Thanks in advance for your input scott,

elad