I just picked up a vibram Summit from my local secondhand sports shop. The specs online say 2/3/-1/0, which makes sense to me. However, the disc says 6.8/40/12/5..... (guessing the 40 is 4.0, but still confused)
I also picked up a Lace that has the frame where the specs would be printed, but no numbers.
Can someone please explain this to me? Most of my bag is Innova.