Here is a link to the insturctional video I used. http://www.youtube.com/watch?v=VerP7-aiEBw
In the video it explains how to connect the cone at the seam and also how to select different slopes of the caldera cone. I chose more slope because I only had a foot and a half long piece of flashing. Where as the cone in the video was made from a two foot piece of flashing.
I have seen the UL cones but I didn't know they would fit inside the pot. That would definitely be a plus as I don't know where I will put my cone in my pack. BTW do you think the UL Cone would be more fuel efficient than a standard tight fitting windscreen?