That's true...but for some reason the reading seems to change a bit with depth...contact surface area maybe?
It's not the depth of the MC that is the issue, it's The contact resistance that's the issue. It's a two-point measurement and the contact resistance is in series with the load you want to measure.
Having tips not in deep increases the contact resistance leading to lower mc readings.
Here is why you Do need to sink deeply, or add a few percent to a non deep reading.
Got it, thanks 👍🏼