Thank you - I went to Varmint Al's site and saw he used a washer for the threading lead screw axial end play.
For the Saddle screw you mentioned, I do see those tiny 2 screws in the diagram as part 541 - screw - but I do not have those screw holes. Can you send a picture and/or describe how they work putting pressure somewhere ?
Are there any other adjustments for any of the other lead screws, (Tail Stock, Tool Post, Apron, Feed Box, etc ?