Just sighted in my 204 with the new Leupold VXL 6.5 - 20 x 56 extreme varmint reticle. A bit confused in regards to using the additional aiming points at different power settings. As per the instructions, I am supposed to have a 200 yd zero and because I am using the extreme varmint, I am supposed to have it set all the way to 20x when sighting in. Then I should have aiming points for 3, 4, 5, and 600 yds (roughly). My question is if I try to sight in on a sod poodle out at 400 yds and I get mirage at 20 power and have to crank back down to probably 10 to 15 (which is very realistic), will the additional aiming points still be the same. It does not appear that way to me. Is there a chart available that can be used for the different power settings for use of the extra aiming points?