I looked up the winegaurd and the have selection assistance on their site. Winegaurd suggested their HD-1080. I am not trying to contradict your suggestion just thought you would like to know their input.
Is there a such thing as to much antenna?
I feel that a $60 to $70 is not a big deal and would rather have more antenna than just enough as long as the larger antenna does not hurt the situation.
If bigger is better why not go with the Winegaurd HD8200U at 168" that is 14' I am sure the wife will love that.
I had no idea that these things could get that big.
Thanks again.