model tech is like nitro models in that their in structions are generic. They did include a couple of pages specific to the cap 21 you seek. They give for thrust: right 1.5- 2 degrees down 1-1.5 degrees. Control throws: ailerons 1/2" total 1/4" up and down rudder 3 1/2" total swing elevators 1 1/4" total or 5/8" up and down. They say these are for average performances, whatever that means. This plane can be quite snappy so I would be careful. CG 3 1/8 back from leading edge.
Good luke