Hi-Q antennas have fewer moving parts, so potentially less to wear out. The coil is sealed inside a weather proof fixed radome which does not slid up & down, & is fixed to the mast. Only the inner parts move. I'm sure High Sierra would argue the reliability point. It seams to me that an antenna which does not have to telescope out longer, or retract shorter, in order to tune, would take wind, vibration, & mechanical wear, a little better.
I already have a BB3 but not sure what I would replace it with. The High Sierra is more like a BB3. I do like the High Sierra mount that they offer. A sturdy mount can be a problem for the screwdriver antennas as they are rather heavy. I made my own and it works well but it was not easy to find the right materials and do the drilling I needed due to the thickness of the mount. I would read the Eham reviews.
"Oh what a tangled web we weave when first we practice to receive."
-Otto Watt Sept. 5 1925
Ok maybe I should clarify a litle bit hihi. I have a '96 Chevy Tahoe 4x4. Not many options to mount an HF antenna so Im thinking of utilizing my trailer hitch and mounting an antenna from the side of the vehicle. Now the reason Im thinking High Sierra is because of the mounts available from them. Of course Id fabricate my own the way I want it but I dont want it to be a huge deal. Lots of pros and cons for what I want to do but limitations are preventing other alternatives. Motorized is a means of convienience but I supose I could go with the Hustler style of antenna. Bad thing with that is having to get out and change coils So any suggestions are welcome.
Nobody is immune to the trials and tribulations of life.
I never tire, for the hunt gives me my strength.