I reccomend buying a probe like this:
http://wildhorse-innovations.com/ind...d&productId=80
It is not as accurate but you are only in it for a couple of hundred. Then you can decide if you need more accuracy (I did not).
The tool setting option on this one is not practical. With the tool table I don't think a tool setter is really useful anyway.
I would think a rigid (relativly) probe that measures when an electrical connection is made would be good for 90% of the jobs out there. I havent found one yet though.
You will love having a probe, the G68 command has changed my life!