Just ordered a Black Ice shaft from Seyberts because of this thread, and also had some bucks to spend with them from a recent purchase. As usual from them, got it in 3 days. Really nice shaft, very slippery in the hand, great tip, hard but you could actually play pool with it if you wanted, stiff and solid hit but heavy, about 2 oz heavier than a normal shaft. I ordered it to fit one of my 3 McDermotts that we are not using at this time and it goes on really nice, a little firm just before locking up, and rolls perfectly straight. Breaks really great, but now that cue is a little over 21 oz, and feels a little heavy to me. I am going to take the weight bolt out and cut it back a bit to see if that helps or hurts. Really liking it so far, but really having trouble seeing now how anyone would want a 25oz cue for breaking. Different strokes for different folks I guess.