The Viper PST is a good scope, but my SWFA 5-20HD blows it away (I own both). http://swfa.com/SWFA-SS-HD-5-20x50-T...pe-P51653.aspx
The SWFA scopes are quite a deal and they have a "trade in" program. I sent in my Leupold and the gave me a very reasonable credit on a new purchase. You can then buy those used optics from their "sample list".
Swing by a match in Pueblo or at CRC. You can see all the gear you have only read about, and I'm sure that people will let you finger f*** their rifles too...