Hello everyone, this is my first post on here. New to this stuff. I have been trying to get my swr down. I was able to mount a 5' firestik II on the F250 roof with a breedmount and get 1.1:1 but I can hear it vibrating and making alot of noise. I would prefer a more flexible antenna for the noise and when I'm out hunting in the mountains. I tried the wilson 2000 but I was only able to get it down to 1.55:1. I have a 203p linear on it and don't want any reflected power. What can I do to get the wilson antenna down lower? I do have a 10" shaft currently. I have the mount bonded to the roof in two spots. I have the hood bonded to the firewall and doors, cab, and bed bonded to the frame. I had about the same results (within 0.05:1) on a different truck's backrack with these two antennas as well. Would a longer shaft be better, and if so, how long?