I often sell multiple sets of my grips to customers, and now I know what they do with the extra sets. . . . . . . . . . . . they use them to take cool pics. Thanks to my buddy Joe for posting those excellent pics of the close-up detail of my grips. He is correct that the seam is intentionally installed at the place on your grips between your fingertips and your palm. The edges are butted up to each other (not overlapping), which automatically makes it so the resulting seam is not in the way of the "feeling" portion of your hand. On top of that, most riders find that with gloves on, they aren't able to feel the seam, anyway.
Mr. EJ_92606. . . . .here are a few links to the thread over at the K1600 Forum which pertain to the group buy, and the resulting comments/observations of the participants:
Hope this helps. I am very impressed at the in-depth detail which has been requested, and I am very happy to supply the information to interested customers.