The material that I saw in the Su sleves in Colorado was different than that one I got from Dan from his first batch. That material was more flexible and plastic like than that one my sleves are made out. I think that may be the problem that you are having with your sleves. The new material that Elliot used on the second batch is different than the one he had in Oregon the first time I saw his sleves.
I wish any of those guys would shed some light into this mistery!