TBN tells you what level the additive package is at. 1 needs to be replaced 7-10 is new oil. Usually most cars are at about 2-4 after an OCI.
TAN tells you the "Total Acid Number" which is how acidic the oil is becoming from doing its job and from the by-products of combustion it is absorbing. It can also be an indicator of a PCV/Breathing system fault if it's too high too quickly into the OCI.
Anything over 500 miles will produce enough results to be measured in TAN, Moisture, Fuel Dilution and Coolant testing.
Black Stone will also tell you if it's out of range for your application at that mileage.
They identify coolant the same way they identify all the other microscopic contaminants in your oil through their testing process.
When you tell them what oil you ran tell them in the comments section when you fill out the form that you added some Valvoline MaxLife and what type and they will take that into account.
You can tell them what kind of coolant you have, I think they can still pick up on it anyways, but the more information the better.
If you want some really good information about what is going on in your engine ask them for the Terry Dyson analysis, it costs more but you will get a super analysis with Terry's expert experience and you will be blown away by his service and can ask him all the questions you want at anytime because you become a customer for life with him.
I'm a customer of his and happy I found him.