The 102" whip is an icon in the CB world. I used one 20 years ago with great results (and a few broken fluorescent tubes at the gas station). Anyway, have it back on my Prerunner now but, am experiencing something. Had to add a 10" extension and a 4" spring to bring the match (tested on 2 swr meters) down to 1.2:1 evenly on all 40. I'm attached to the left front bed rail and am somewhat directional of course. But, it seems I'm not getting return Q's from anybody. Occaisionally I'll get someone call back from a few miles away but it's rare. Anyone have a theory? I've checked all coax continuity and grounding.