/pause in CH rot does absolutely nothing for you but create issues; if you can't count you shouldn't be in the rotation. You need to be able to adjust for server lag, the always present slow (or fast) casters in the rot, dead tanks, etc.
I always use mulitple /casts to help catch fizzles. Other than that there is nothing tricky or innovative that you can accomplish with macros. It's mostly just a way to announce what you're doing to whom.
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