I just bought a summit one not that long ago. I have seen your stuff, my vote would be to just bite the bullet and buy the nice Mittler Bro's unit. Here is a photo of my first beads I did on some 22 gauge steel. My summit roller deflected on this stuff. If you have done any research on bead rollers at all yet you know the cheap ones twist and guys do all kinds of stuff to them to stiffen them up. Well its true they need it.