I had a Supreme slider must have been smaller as it was somewhere close to $22. I got so tired trying to keep it in place that I spent more time securing it than I did FMQ'ing. Then I got a new Brother PQ 1500s and tried the slider once, same mess. Took it off and discovered that the surface of the machine plus the surround were both so smoothe and slippery, that I have no trouble moving my quilt around with no sliders at all. I am so happy with that machine. Have had it for about 3 yrs. now, I think, and still it is as slick as the day it arrived, and no, I have not sprayed it with anything or used a single thing on it.