Does an 88 ft. doublet have any advantage over a conventional 67 ft.
doublet? In either case, feedline would be approx. 50 ft. of 450 Ohm ladder
line to a 4:1 current balun, then a short length of coax into the shack.

My usual band of choice is 40, but I'd like to become more active on 20 and
30.

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Vy 73 de Bert
WA2SI
FISTS #9384
QRP ARCI #11782