I'm about to install Archer nav antennas in the wing tips. In the instructions that Bob sends with antennas it states to use the three small screws on the leading edge of the antenna to help secure to the tip, (drill and countersink) also attachment at the edge with platenuts, plus glass if desired. Is this the best way to do this task? I also have the new style wing tips for 7a with (2) lights and nav lights in the wing tips. It states to install antenna as close as possible to the light fixtures. What about the foil tape? I understand it is for the heat from the lights, but does it interfere with the reception of signal? Any help with this is greatly appreciated. Thanks, Frank