This was my first year hunting with a rifle and I figured out I need a better scope. My Nikon is terrible in low light. I think I've settled on the vx3hd. I'm shooting a 270 and think the 3.5x10 should be plenty magnification as my 3x9 worked fine. Is the 4.5x14 overkill for a 270 or is it better and worth the extra 100 bucks? There is also only one model of vx3 with side focus. Is that really necessary?