Francis,
A VOA that had any meaningful data would cost heaps of money.
HT/HS etc should be available from the oil company concerned. In fact, most of the data you need to compare oils are availlable from the oil companies - they just don't make it publicly available. A few emails does the trick.
I use e-monitor as well, but to get all the info that is posted here, including a TBN, and water by FTIR (the cheapies do water by crackle), will cost you around $A35.
That is just too much money for me, so I just do the basic wear metals etc, no TBN for the $22.
I suppose if more people did UOA's, the price would come down.
Dave