Well, just drained everything and put the system back together minus the t-stat. As comprehensive as that write up is I am surprised that it didn't mention the pressure switch bracket mounted between the nuts on the t-stat. No big deal just a little extra work. I will do the actual VC-9 drive and subsequent flushes tomorrow. Cheezit, If the system is flushed with simple Green and then really flushed good, 3 or 4 times, how detrimental would it be to not drop the starter to pop the right hand block plug.