I recently got a maco and mosley 4 element, did some measuring and one boom long then the other and elements are spaced different. Which one would be better to put up on a 40ft. tower. I've heard if you add 1 to 2 inches to the reflector,it would help the back door,any truth to this? Any mods I can do to either one, that would help improve tx/rx. Went and bought a MFJ-259b, hope this help me from going up and down so much. Can't find much on beams,unless you buy the sofeware and I don't know if I want to go that far yet. All help welcome!