Solved:
https://www.haascnc.com/service/trou...orrection.html

I have a new ST15 which is a huge upgrade from my last lathe.
My question is how do you properly align a BOT tool holder to the spindle.
I have a Haimer Centro coaxial indicator and I am not sure if I should be indicating at the front of the ID (nearest the spindle) or possibly halfway down the interior of the ID.
My gut says it should be the front portion of the ID that is the closest to the spindle since this is where the lip of the sleeve reducer will seat.

Any suggestions would be appreciated.

Thanks!