After 3+ years heavy use, developed face crack, now in TM’s hands under manuf. warranty, awaiting response. Meanwhile, not wanting to wait, bought the r7 425 (w/movable wts.)… more erratic, no longer with it, and the head is too high/big for my eye, (ibid the 580xd) so I found another identical 540xd, 10.5º orig. 55/S soft tip shaft, in exc. condition and paid up to get it quick. In interim, range-tried a 460 Cobra, didn’t suit me at all. I also have/happy with the 540xd steel 5 w and the 580 (titanium)3 wood. (TM Rescue was too hooky/closed face for me.) The 540xd is hot-faced and workable, and I prefer its orig. TM shaft to the newer Fujikura in the r7 425,(too soft/whippy for me tho labeled Stiff). Haven’t hit the new TM Burner yet, but that’s the only one I can possibly imagine MIGHT be as satisfying as the good ol’, or great ol’, 540xd.