I have glassed a fair number of cats in central to southern AZ. I have killed two this way and shot at two others. This is the extreme of hit and miss glassing. The first cat was a 160 pound tom from unit 33 and the second was a 125 pound tom from unit 27(this year). Unit 24a would be another good choice. Good Luck! It will be tough, fun, and extremely rewarding if and when you kill.