Hey guys, wondering if anybody who has a set of Altamont grips could chime in. I've been looking to purchase a set of the old style lett grips for my GP100, and I noticed that Altamont makes their own set. Is their set identical to the factory Lett grips? If I were to get a set of grip inserts that were made for the factory Lett grips, would they fit in the Altamont grips? Thanks.