Here is a simple way to set the CG that I have used for years. Set the model up so the center line is level, NOT the horizontal stab the center line running the length of the fuse. With the air still..no fans running ect. lift the model while balancing it at the correct CG point. If the tail drops add weight to the nose or remove weight from the tail. If the nose drops do the opposite. Repeat this a few times until when lifting the model at the correct CG point on the wings the model does not change attitude and remains level on the center line. I like this method because one person can preform this procedure and you will get it balanced exactly. It is very important that you know for certain where the CG point is supposed to be and best not be guessing where it should be. With all the hard work you have done this should be a walk in the park. After you get the model flying you can, if you choose, make small adjustments to the CG until the model flies the way you would most like it to.