My suggestion, put memory marks on the sights(elevation and windage both-use white paint)and count turns or half turns instead of clicks, faster. With windage clicks will work fine to fine tune and adjust for lighting conditions. Or get the Tri-set rib for your open guns.
If you can see well enough shoot center mass at 25 yards, get a center hole at your close distance and shoot for it, more Xs usually this way. If you are like me and cant see any more, use neck hold for 25 and 50(or center of head)Experiment and see what works best for you.