Thanks, RJP. I was more curious about total advance, I figure to start it up at ~38 and do the cam brake in and make my first runs at that setting, also.
I got the thrust bearing surface finished today. The caps are fairly easy, indicated as I show and the fly cutter is set at 4" diameter but, the block is much more tedious, to sneak up on the finished surface. The last 5 cuts, were at .0005 each, until I could just see witness marks in the die.
In the picture of indicating the center of the mains, if you look to the right side of the picture, you can see one of the large pieces of mold slag I spoke of earlier, There are more but on the outside of the block.
I also included pictures of the way I hold the block to the table.