Start this out by saying I have not yet shot any sfp scope to anything of a distance yet due to this being my first experience with one. I have always used a ffp optic and shoot at 1k plus distances on occasion but usually average 5-700 yards for sake of mistake and my ability to take game at that range. That being said I can not afford to buy ffp optics all the time so I was putting together a brush gun for varmints, gun is a ruger american predator chambered in 6mm creed, wanted something different.. anyways I put a vortex crossfire 2 sfp 4.5-16-50 on it and brought it out today to see how it does. Shooting 103 eld x, factory stuff for sight in at 100 yards I found that zeroed at 16x has a dramatic poi change if I switch to 10x. 16x center bull, 10x 1 1/4" high. 10 consecutive rounds, 5 at 16x, 5 at 10x, all consistent groups. Tried adjusting the parallax a little but no change, figured at 100 there really wouldnt be but thought I'd put that in there just for info. Because 9 times out of 10 my scope will stay on a lower power how do you guys compensate for the poi at longer ranges with the sfp optic? I'm assuming 1 1/4" at 100 would be a dramatic number at say 500. Again I havent shot at that distance with this setup only due to not feeling to safe sending it with an unknown impact area. So what's the trick, max out at 16x all the time or stay at 10x and not use the capabilities of the 16x?