Are taper lock pulleys a good choice for ball screws?

[Muzzer]

I've used taperlock pulleys wherever possible, as they are much more secure and concentric than keys and grub screws and are often seen on professional machines. As you say, the main disadvantage is the size. All 3 of my machines have them where space permits and my Shizuoka came with them from the factory. I've used keys and grubs where space is tight (lathe cross slide and Bridgeport Z axis) and those don't feel as secure in my mind.