The six stones carry the arch. The keystone is what they produce, and it is not a seventh stone you switch on.
This is the ledger. One page a month, in your own numbers, sent to you whether it flatters us or not.

One page, the first two working days of the month, stone by stone. It is the whole product in one document, and it is the thing you check us against.
Hours handed back this month, per stone, counted from the work the agent actually did. Not a feeling. A count.
Money found, money saved, and money that stopped leaking: a deadline met, a subscription killed, a return filed on time.
Every finding that reached you, what it was, and who read it before it got to you. Including the ones you would rather we had caught sooner.
Our own numbers, the ones on the home page, are modelled by us, not measured: real run counts multiplied by estimated standard times. We say that on every page the number appears, and we will keep saying it until the standard times are ratified against real work. When we quote a figure for your company, it is an estimate, and it is labelled an estimate.
Your ledger is the other thing. It replaces every estimate with what actually came back, and it is the only number either of us should argue about.
The ledger counts hours and dollars. It does not put a number on the third part of the keystone, and we never will. What we do instead is ask, once a month, in one line: what changed for you that we could not have counted?
Your answer goes into the ledger in your own words, unedited. That is the part of the result that matters most and the part no metric survives, so we do not pretend to measure it.
A dashboard is something you have to remember to open. The ledger arrives, on a date, whether or not you were thinking about us.
If a month is thin, the ledger says so, and we tell you why before you ask. If the ledger does not show the time back, you should not be paying us. That is the test.