I'm looking ot replace my coax runs. I will operate up thru 6 m, and lengths to 150 or so ft. I want coax that is low-loss, flexible for the rotor loops and long-lasting. I'm considering: CXP-1318FX by Cable Experts, LMR-400 and Belden 9913F7 (flex 9913 with foam dielectric material). Any suggestions, stories good or bad from users of these? Thanks, 73 John