Everybody made felt because it was the best at the time. They quit making felt for awhile because of the spread of didymo and the fear of states outlawing it. They started making Vibram, which is junk in a slick environment. In my experience studs are junk also, just ask covecrawler. It really comes down to where you are using them, but if felt isn't doing it for you I would get the aluminum bars. I've tried them all. I've busted many times. I'm getting too old to fall so I will not wear anything but aluminum as long as they are making it. Hike in on your vibram or rubber as mentioned above.