Hello: My p3s can do longer distance than my p4 at the moment, and wondering is there any kind of adjustment I can make. I tried my new P4 yesterday flying at 360 ft. altitude under a sunny sky with line of sight at a very familiar testing site and it only yielded less than 3000ft, while my old p3s performed the same with stock antenna. P4 is suppose to have 3.1 miles distance in them while most people should easily get more than that. Am I missing something? I appreciate for all responses in advance.