I have quilted Minkee backings with no problem on my longarm. I pin the stretchy edge of the Minkee to my leaders so I can controll how much it stretches. Check the back after each advancement of the machine and avoid putting much tension on the sides with the side clamps. The quilting shows up very nicely on the Minkee. I do like to match my thread color to the Minkee color because of how nicely the quilting shows on it.