"T" man I remember when the 4th axis conceptwas put up over on "THAT" other forum and it caused a big stirr because people did not understand it.
I guess I am lucky enough to live close to Ken Stanislawski when him and Gene developed the Tek-tech 4th axis to see it first hand and the benefits of the concept.
The 3rd axis sight leveler is what I use to set my 3rd axis in conjuction with the 4th axis of course