We have had at least 5 Nano one skis made in different time frames ( within 14 months) and as long as I measure with tips, not jaws, they all ski almost identical. If we set the fin up with jaws it's not the same, which means the fin settings were coming up dramatically different. (I have written about this before) I left one in South Africa and one at my house in TX and if I wouldn't have had one made in green to be different, I'm not sure I could have told you which was which. The two skis were made almost 12 months apart. Changing liners actually seems more significant and messes with me. I carried those back and forth when possible.