Hi Peter,
I've been doing a "dry" fit of the wing servos and push rods today but the control horns for the ailerons and flaps are not pre-fitted in the newer models. Instead the horns are supplied loose for glueing in place. Trouble is there are two sizes and they can go into the surface pocket either pointing up or down . If pointing up, they foul the hump and if pointing down as seems right, they don't seem to provide enough travel to lift the surface. I don't want to glue them in until I'm sure! Have you (or anyone else) come across this? Photos: