Thanks for the info and the links. I think I made a mistake by getting a 16 mil cover since it is very stiff and difficult to manage. I may contact the solar roller people to find out more information. Their video spent most of the 20 min on how to attach the pole and not on the actual use of the roller. You seem very happy with the product and that is a very important testimonial. Hopefully this product can handle a 18' round stiff cover without requiring cutting it into sections.