I suppose the question would come down to what works best for you ? IM not going to debate what antenna is better then the other , if you read the books , as MC said , center load "should" out perform a bottom load. I've used so many over the years that they were all ballpark in performance for my liking , weather it was a Wilson 1000 / 5000 or a Fransis Amazer or a SS 102 ....with my personal modualating and skip shooting over the years , they all just did fine and dandy. I've used the Wilson more so then anything else over the last 15 years or so for ease of installation , SWR properties and good looks......IM really a drill a hole kind of guy , but weather it's a mag mount or trunk mount , Wilson's have always seemed to hold there own over the years. 10K sure looks like one hell of a antenna and from what I've heard over the years .....THEY ARE !! ......I live in the Los Angeles area and I really prefer to keep a low profile in my car , I put one of those 10K Sabor light rods on top of my car around here , I will surely open a few more eye's then I personally feel I need coming my way. Not to say that I might try one one day ? I did use a Monkey made for a short time that also worked very well........but really gave me the feeling of being some kind of werido everytime I would walk out to my car or questions from strangers about what that thing was on top of your car ?? That was enough for me.