Nube questions surrounding purchase of Leupold CDS scope
I'm planning on buying a Leupold VX-3 4.5-14x40mm CDS and will be installing it on my Browning A-Bolt II Medallion 270. The primary application is hunting. Being a nube to all this, I have a few questions and would appreciate any direction you can provide:
Q1: I noticed that Leupold now has a model with an adjustable objective lense. I don't think this was originally available, but as this scope goes to 14x, is paralax really needed? Just wondering if it's worth paying extra for this feature.
Q2: Bases and mounts. I'm clueless here. I currently have a Nikon Monarch 3x9 on it, but have no idea what bases/mounts it has. As I'm planning on extending my shooting distance, should I get new bases/mounts? And if so, what?
Q3: Through the Leupold custom shop, they can put windage on this scope in addition to elevation. Is this worth doing before I mount and sight in the scope? Or should I even bother?
Keep in mind I'm a technical person, borderline geek--so I like gadgets. I'm new to long-range shooting and am looking to extend my current capabilities while keeping it simple. I also have a Leupold rangefinder, so I don't need to use the scope for ranging estimations.
Thanks for your help.