The shooting high you can compensate for by using a 6 oclock hold, but the windage thing.....Seems like unscrewing the barrel just a whisker would move the front sight to the right and the POI to the left, but I'm not sure how much to go or even how feasible this is. Another approach is to shave down the left side of the front side & open up the left side of the rear sight notch, but again I don't know how feasible this is.