There is no doubt or question in my mind. The Viper sights are top notch. Here's my review when I researched for the best sights money can buy. http://www.huntingnet.com/forum/tm.aspx?m=1577393&mpage=1 Personally I was thinking Spot Hogg was where it was at and was headed that direction until I picked up the Viper. If not the Viper, then no doubt the Spot Hogg.