This normally makes Rokslider heads explode when it’s mentioned, but it is quite easy for someone to combine MOA calls and estimate the impact in inches without a reticle. That 10 mph wind call at 400 yards for example. You don’t like this system, but you remembered it’s 2 MOA, that’s good. Without a reticle, estimating 8” on target is a hand and a half wide. See, you’ve just used your first Kentucky windage MOA to inches wind hold and lived to tell the tail. The old timer rule of thumb is to hold to the upwind edge of the vital zone for 10 mph, which isn’t bad advice for 400 yards and under.