I got a ROMEO 5 the other day. Zeroed it yesterday at 15 yds (indoor range). Like the Highrise Mount. When I started it was way low. 3 shot increments got it up to center mass (started out about a foot low), 2 clicks to the right and spot on. Ran it out to 25 yds and totally obliterated the head on a silhouette target. First chance I get, out to an outdoor range and see what it does out to 50 yds. BTW, emailed Sig about the cost of a low mount and they said they will send me one for free. Not to bad, eh? When I get it, i'll see what the difference is.