I read about this in one of my Signcraft magazines, but have been to afraid to try it as well. There is a material called "ready 2 print banner" by Banana Banner that a couple of my suppliers sell, it has the very low profile grommets and supposedly has been tested by the company in a versacamm and valuejet. it comes in a roll, is pre hemmed, and has two grommets every 2 feet apart, with 3 inches between each of them. In the Signcraft magazine, I dont remember what all they said about it, but I remember they said that you should add a few peices of tape on the platen where the grommets will be to catch the overs pray there. My main concern was how will those grommets hold up, it doesnt take that much time to install grommets in a banner (except for the 20+ foot banners).