I think if you were to cut and re-crown it, 16'' would be the best route. Yes you would lose a bit of velocity, but the barrel will not "whip" as much and I believe it would be marginally more accurate.
Having said all that, I went with the 18.5'' barrel because it looked better to me and more traditional
Having said all that, I went with the 18.5'' barrel because it looked better to me and more traditional