I have a couple of 3 inch velcro backing plates for my rotary buffers, use a memory foam pad on it for small parts.
Problem is not being able to "reach into" some areas, but excellent for other work since all three of my rotarys are variable speed.
My partner in our Grumpy's Garage has a great lath and is quite the machinist, he is going to attempt to make me a 2 inch extension for the rotarty shafts, don't know how much wobble I will get, which is only going to be known once he makes it and I try it.
Micro fibers are a real "hit and miss".
Try the 70-30 blend, from Korea, who knows who has sewn on their "special label", but the Korean mills seem to be more consistant in their production. Every cloth has to have country of origin on the small tag.
There are only 5 mills in the world that produce the fabric, China and Korea.
In my working with these towels, find the 70-30 is a little softer than the 80-20.
You may wish to contact Rob Regan about towels, as he is one of the most knowledgable and distributes only top grade towels.
You can find him on this site.
Grumpy