I am looking into bipods. I'm going to get the equivalent in each vendor that goes from roughly 13-29", I think they are both a little different than that but pretty close. I am also going to get it with the swivel. I am curious if these bipods are similar or if one is better than the other? I have used the Harris on a buddy's gun and it was pretty nice, but the Caldwell looks the same. Is there a quality difference or what?