I've never been a fan of star probes. Not to say that I haven't used them. It's more that I haven't figured out the trick to consistently and easily orient the 'star' on a TP 20 setup. Worked with a Zeiss with a Vast head for a few years. That was somewhat manageable. Seems to me that you would need some kind of hardware solution for this. Some kind of rotatable element to go in between the TP20 and your probe head. Wouldn't have to rotate 360 degrees. 90 degrees of rotation would probably be enough.
