Well, I went back to look at the 580 BFS again after checking it out here and elsewhere online. I put it on and walked around a bit with it. The only problem was getting it off! It just wouldn't come off until I got to my truck with it and then it came off easily, lol. I think I'll start a thread on it or maybe tack it onto the existing 8500 one that's already here. I will say that it kicks butt and makes my EB630s seem like toys. I'll put up a someonewhat crappy picture of it here and save the others ones for another thread.