I was going to try one of those when I found that it was easier to use my shorty arms from my Saris hitch rack. I have the arms for 2 and 4 bikes. I mounted the the two bangers to a post in the garage and that worked pretty well. Only thing you couldn't do was change the angle of the bike. Used that until I got the one from
Sette. It ain't no parktools vice but it works pretty good.