NJT

It's 1.9 (Sorry to be pedantic).

633 is too big. OR28 will fit an F8 and a Max.

I think a lot of Nagras's time is taken up by developing gear for secret services/MOD. This is what I've heard anyway.

A few manufacturers do make small changes to microphones throughout their production. It's quite likely that during the time between your first and second CS3, Sanken decided to give it a slightly flatter response.

As far as I'm aware, water itself wont damage the mic. It's the dirt and minerals in the water that can corrode the elements. If the mic does get wet, it's best to wash it with filtered water.

Take a look at the Audio Wireless kits. Made by the same guy who designed the Microns. Slightly friendlier companding system and some nice features.

Is anyone aware of any major differences between the new KK capsules and output stages compared to the old ones? Apart from the option of AES out. https://www.neumann.com/?lang=en&id=current_microphones&cid=km_a_description