lol This topic is near and dear to my heart. I turned 40 this year and my eye-doc turned up the power on my prescription. Oh well. I sold my DCM (CMP) Service Rifle and am upgrading my scope collection. I loved my Mk4 3.5-10 and I effectively engaged with it out to 910 yards with my 308, but I found that as dusk settled in, I had a hard time picking out targets from the backdrop. I took a peak through my buddy's higher powered S&B optic and there was a good bit of difference. Now, I am trying a Mark 6 1-6 now on my short gun, and the glass in the Mk 6 is fabulous. If you like Leupold, they have a Mark 8 3-25 power scope that I saw at SHOT this year. It is a fine piece of glass and you would like it. I am partial to S&B and I am favoring a 5-25 on my new 6.5 Creedmoor long range build. I bought new FFP optics, but I never had trouble ranging and hitting with my regular old Mk4, either.