BlackBullet

FOV Type is not related to your aspect ratio, it is simply a way to express field of view. Games use different FOV Types, so the calculator will change according to the game you select. This is the value you type into the calculator is correct for the game you have selected. If you want to convert between different FOV Types, you can select the same FOV Type and value, and check the output for the Config FOV to achieve the desired FOV, like in this example:

The important part is the the "Actual HFOV" is identical, like it correctly is in your screenshot. Special for Kovaak's is that the "FOV Measurement" selection affect the FOV Type.

Great! Thanks for the help! Someone give this man a medal for <5 mins support time.

I've done a lot of improvements on the machine (mounted it in a cradle, made it click on command) and have tested quite a bit on the Logitech G900, Zowie and Razer Mamba 16000, but been to busy to put together something publishable yet.
Also, the Razer Mamba results had me so baffled I have spent a lot of time testing it... I think people will be very surprised!
Will get to other mice after these are tested.