AlliedModders - ★ CS:GO Server's Internet Settings

Hello, I've got a few CS:GO game servers running,
and a few questions about the Internet settings.

The details of the servers are listed below.

Code:

Maximum players = 36 (def. "32")

Maximum spawn points per team = 18

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Tick rate = 89 (def. "64", max. "128")

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Min Update/ Cmd rate = A) 89  B) 64  C) 48  (variable, depending on connected players count)

Max Update rate = A) 89  B) 64  C) 48  (variable, depending on connected players count)

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Min rate = 30000 (def. "5000")

Max rate = 128000 (def. "0", max. "128000")

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Net Split rate = 2 (def. "1")

My questions are listed below.

A) Is it OK so sv_mincmdrate, sv_minupdaterate and sv_maxupdaterate change depending on the connected players count? This is intended to avoid the Server's FPS drops. As I see, when a half of the players are dead, server runs at 89 FPS. While they fight and are alive, the server FPS gets down to 50-60 from time to time.
B) I've read on a few websites, VALVe-related information, that net_splitrate 2 is the most optimal setting. Is that correct? Some people have it 1, some others 512, 1024 or even 999999. How net_splitrate must be set?
C) Is it OK so sv_minrate is 30000 and sv_maxrate is 128000? There are some players who have no idea about these client con. vars., and they'll probably use the default value. I don't want these ones to get higher choke or something.

Servers are hosted on the next machines.

A)

Spoiler