With those who use x20 to x25 magnification scopes, do you see yourself dialing down your magnification when shooting between 200-700 yards on a regular basis? The reason I ask is I'm looking to buy a Nightforce scope with SFP, yet I'm torn between a 15x scope or a 20x variable. And if you do find yourself dialing down, about what magnification do you end up using between those ranges? I plan on using a MIL Dot scope to range estimate, and I know the difference between SFP and FFP scopes.