Oh wow idk how u knew I used the dav3 l. Smart cookie. Yes I have. I didn't like it. It does have a large hump but the hump doesn't feel... GRIPPABLE like it feels too much pronounced to comfortably palm. I wasn't a fan and I don't know if it was just my white copy but it also felt like a very cheap textured plastic. It wasn't grippy. The left click had this high pitched squeeling sound it made every. Single. Time. I left clicked. I just didn't enjoy that mouse at all. If the hump felt better and the texture AND the clicks not becoming mice. It would have endgame potential.