Hi Dr.Ake,
Thanks for the update of your correspondence with Luxi. I did comment upon the revised Luxi specifications a few days ago in post #2 here.
Unfortunately, your reply from Luxi wasn’t very informative about the density of the material, but as I previously commented it appears to be one of the new breed of what I term “high performance” polyfoams. Luxi still hasn’t responded to my requests for more complete information on their new design, but if they do I’ll be sure to update things here on the site.
Thanks again for sharing.
Phoenix