I use BMS306 servos but smaller would too.
I flew the plane a few times on Sunday at NEAT and I really love it. It is now my prefered foamie. The previous one was the Shockflyer F3A and I had 5 of them. I will stay with the Clik now. I also let a young kid fly it on Sunday morning and he was doing amazing stuff with it after 30 second. You could see more in flight pictures here:
http://picasaweb.google.com/xavier.mouraux/Clik and I should have some video posted soon.
Xavier