Repaired TVFool link:
http://www.tvfool.com/?option=com_wr...60b561b786ba2d
Unless you are actually having reception faults, it would be a waste of money to try to "improve signal strength" which, by itself, is a fool's errand.
If you're having reception problems with specific stations, then there would be room for improvement. The CM2016 would be expected to perform just fine for the Phoenix stations. Point it at South Mtn.