I've been using the Laborie CF angled endpin in both of my instruments for the past 3 years. They have the little black rubber ball on the end and that's it. No spike,no nothing. If you take the ball off, you have just the rod tip. The ball works satisfatorilly on most floors/stages, but it tends to skid and give way on linoleum and carpet. I had to play a gig on a linoleum/tile floor once and the instrument kept skidding, so the next morning I took the black ball off, dug out a good old crutch tip. Used black electrician's tape to wind a big enough wad around the end of the pin to accomodate the larger diameter hole of the crutchtip and ouoilla! A brave new world. Never looked back or contemplated using anything else. FYI, the entire Laborie endpin assembly pops out for storage in a pocket or bow quiver while traveling with the bass. Christian installed my pins himself. He sits the bass down on a table, takes a 1/2 or 5/8 inch drill bit and drills this hole at a 45 degree angle into the end block behind the existing endpin hole, nearly all the way to say, within 1 inch of the back edge. Then he takes an endpin reamer and reams and smooths the new hole. Then he takes a look at your height and cuts off the end of the CF pin "blank" to the correct height, and puts the pin in the hole, and then installs the little rubber ball (which I no longer use). The whole operation takes about 10 minutes and he charged $75-- $15 to drill and ream the new endblock hole and a whopping $60 for the CF pin. You can do this yourself if you know how to drill straight and can ream the hole and you can buy the Laborie endpin "blanks" from George Vance at Invalid Link Removed There are also complete instructions on George's website for doing the installation yourself. Need adobe acrobat to open the instructions.