In the past 15 years or so, I've used the 1.5-5, 1.75-6 and 2.5-8, 3.5-10 and 4.5-14 Leupolds, as well as Swarovski's in 2.5-10 and 3.5-18 on my big game rifles. When I'm walk/stalking, I usually keep my scope on 5X or so. But when it comes time to shoot, unless I'm taking a quick shot at a running animal or following something wounded, I usually crank it up as high as it will go unless the shot's under 100 yards. I guess I always figured the better I can see my target the more likely I am to make that first shot count.