I guess that the real conclusion here is that with the ever increasing power of the modern servo, especially digitals, we've lost site of just how much power we really need for an F3A plane.

That a 2.9kg servo works on the elevator is clear, whether it is theoretically enough power is irrelevent.

However just because it suits BPLR's style of flying doesn't mean it will suit everyone elses. I would suggest that it doesn't make a huge difference what servo you use (out of the current crop of digitals and high-end analogues), so just find one that works for you!

Of course, 3D is a whole different story but that's out of our remit!

James