My G5RV(?) is 92' across the top, 39' 400ohm window line feeder to a 1:1 balun, 30' super low loss coax to the tuner. No tuner used on 40 (flat across the band without it.) Tuner required on 75. (Have tri-bander for upper bands.) Best all around preformer for these 2 bands than anything else I've tried. Oh, feedpoint at 54', ends at 20'. Thought I'd through it in. 73, K6ZL.