Does anyone one know what the "elevation" (distance form top of rail to bottom of circumference) and "line-of-sight" (distance form top of rail to dead center) heights are for "absolute co-witness" and "co-witness" on a 30mm sight/scope? by my calculations: "Absolute Co-Witness" The rear sights "line-of-sight" is 35mm high. The center of the 30mm circumference is 15mm. 15mm - 35mm = 20 elevation "Lower 1/3 "Co-Witness" Would add 3-4mm to the 20mm above to be able to see it go over the rear aperture. So its elevation would be 23-24mm Does that look right? For some reason everybody hides these numbers on their claims of "co-witness" Thanks!