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Antennas are reciprocal as mentioned. Unless something heats up due to conductor losses anything done to improve transmit will improve receive by the exact same amount.


My feeling is the longer boom length antenna modeled was not maximized for forward gain. There should be a little more additional gain from all that extra boom length. Maybe model a 7 element.


In answer to the original question the 1 dB isn't worth the extra metal unless it comes along with other things useful to you like better low SWR bandwidth.