Well I got to try out the Edge system for the first time with the rotary this weekend. I've been using LC pads for 3 years now, and while I can't complain about them at all, the Edge system does give me a perfect center every time without the hassle. This is essential with a rotary. The double-sided nature of the pads also came in handy, while saving space on my shelf. All in all, my first experience with the Edge system has been a very encouraging one.