I am looking to upgrade the scope on my primary long range hunting rifle. It is a 300 Wby Mag lightweight. I was using a Leupold Vari-X III 4.5-14x50 Adj Obj. I want to upgrade to something with a 30mm tube and was thinking of doing another Leupold in similar magnification and 50mm. I really like the side focus, probably just want a duplex reticle since I will dial adjustments in anyways and REALLY don't like the new VX-III adjustment knobs being discussed in another thread. I suppose with these criteria, I am considering either the LPS 3.5-14 or the Mark 4 4.5-14. I am not sure what the windage and elevation knobs are like on the new LPS though. I was hoping to hear from some with experience with these scopes and maybe about some other options that I might not be considering. Thanks.