Thanks Bogart for the info. I was expecting an answer that they were almost the same. Do you find the light felt to be, well, more "floppy" and not hold its shape as well as the standard felt? Think it will wear as long as a standard weight? Do you think that if you snipped out the stitching on the liner that you could place it back in and it would stay in place okay minus the stitching? Okay, no more questions. Maybe someday I'll have two to compare for myself!