I have a very narrow plot only 21feet x 100ft facing East. For the time being I am using ground planes for 20 n 40n. Recently I have added a "reflector" consisting of a 5% larger gp 2.97m behind the driven gp. Measured it at 7dB gain, 140deg lobe and 3 S units down from the back. Only drawback it is fixed and can't be turned. Anybody tried it?