Hi All...I'm having a hell of a time trying to match a pair of 40 meter M2 4 ele beams..both antennas have 1.5 swr or less at 7.150..high or low..switching to both it goes up to 2.1 swr..I'm using a ft-240 core..I have tried 4 turns or 5 turns with not much change..any ideas? I don't want to go buy a stack match! Bob W5RG