If you have a walmart that carries vinyl, it is reasonably priced and wide so you can buy it by the yard. they have different weights too. I have the supreme slider and really like it, but the vinyl I can cover a much larger area. You do need to tape either one down so your quilt in the movement won't take the slider or the vinyl with it. I use packaging tape to tape them down and yes when you need to change the bobbin you need to undo part of the tape, but it is well worth the effort because your quilt moves so much easier that your arms and shoulders don't get sore. I also swear by the machiniger gloves.
Good Luck
Suzy