just thought I'd chime in- I have the Lowe's Swanson model as well, and I really like it. I have a friend who owns a UHMW factory and I got a couple scrap pieces from him. I took the base plate off of my Ridgid Circular saw and drilled the holes to match, then, I put grooves on the bottom of the UHMW to match the raised ribs on the straight edge. This is my new saw baseplate. So, it rides on the straight edge "locked" into place with no room for wiggling. I cannot use it with both pieces locked together because the center clamp would be in the way, but... its not often I have to rip that far. Also, the c clamps that came with the straight edge are pretty junky- I got a pair of the Bessey Mini 4" clamps for <$5 and use those- much better.