Because of this thread. I made the trek to Sam's..looking for the yellow MF's..instead I found and bought the 18 pack of blue LF's for $9.86. Brought them home and washed with no fragrance..no softeners detergent. Half-dried in the drier, then hung them over a large wooden clothes rack to finish drying. As I was folding them to put away, I decided to do the CD test. Unless I rubbed them really hard, I got no visable scratching. Took a couple out to my black test subject. Applied her second coat of WG sealant..in 34 degree weather...and removed with the Sam's blue MF's. Very pleasantly surprised. They work well. Removed sealant easily, and left no visable micro-marring. ..All for about $.50 each.
I also bought 2 packs of the PLUSH 2 pack MF's at Walmart last Friday...for $3.96. Washed them with the Sam's MF's. Side-by-side, the Walmart ones are a little thicker and are a little softer. These are probably going to be perfect for QD'ing, and the Sam's for wax or sealant removal.