The limb lams and glass are the same. I added a power lam to the Gen III that extends 3" past the end of the wedges. I also added a 6" tip wedge. This one feels smoother to my 27" draw, but I fear it will stack earlier than the Gen II. You can see my fears looking at the full draw shots. Big difference in string angle. I'll do some testing tomorrow, and hopefully shoot her some.