Talking to the guy thats rebuilding my HOLSET H1C and reading this I ask him, RIGHT OFF THE BAT he said if you take off the nut and TRY to realign the makings you will not get the balancing right when you go to ut it back together because the thrusts or other style of bearing are not balanced perfectly either. He said if any thing send it off with the thrust/bearing with the wheels to have them balanced. Just his $.02. And what about the Holset you were talking about running with the 12cm^2 housing that you said was on it's way to you?

You tinkering and having winter house syndrome? LOL