While not a PS subscriber, too much like consumers reports.....not always correct test methods etc IMHO......
I do have xls extra as halyards and sheets. I do like the feel, less stretch that staset for not that much more. Along with the ability to color code different parts of the running rigging. IE blue/white for mainsail, red/blue for jibs, green blue for the spin.
Takes a pretty good blow to stretch the main/jib halyards.
She drives me boat,
I drives me dinghy!