Cougar keyboards are the worst experience I have had in my gaming life, I shared it here and you guys still keep wasting your money on that pile of crap, wtf!
As every decent roper has said already here, you can never go wrong with either mx black or red. Both mechanisms are linear which make them fast and very responsive for taps. On the other hand brown/blue switches offer resistance when you press the keys, making it nice for typing but impossible for roping.
Let me insist. Get a red switch steelseries.