I'm using Hitec HS-475BB servos all around. This is only an 11 pound plane with 2-56 hardware.

The Slimline Pitts won't clear the firewall when the engine is installed at the recommended 6" from the firewall. I'm using a Mac's Muffler Extension and the stock muffler. The stock stuff will fit if the engine is almost vertical, but given a choice, I will mount mine sideways.

To "76.ta", what do you mean "...Because most of the plane is fiberglass they should all balance out close to each other or am I wrong in thinking this?..." \

Also, the 5626 servos are great, but don't you think they're a little too much for this plane?