plastic sled are not just for sliding...
I seen this on Sew Very Easy by Laura. she said to buy a thin plastic sled and use on the bed of your machine for FMQ
It make the fabric move really smoothly there is no drag.. I bought two of the plastic sleds from Amazon, they really work well and they don't cost as much as the super slide thing..
Here is a picture of my set up, boy I hope that the picture does not load upside down, I looked up on here on how to load a picture from a Mac computer so I am hoping it will work. So sorry if it doesn't..