Not a fan of the live pilot. Not sure how he is correcting the guide centering from the last head. I can promise no two heads are the same, and unless he is getting the guide level in both directions I have no idea how the tool head is doing it.
Especially with the live pilot. Are the guides all sized exactly the same? I doubt it.
Way too much tool speed.
Unreal. I call that junk. Now you know why most of us do a valve job when we do heads. Getting them to seal is the easy part.