2. & 3: CP caps at 65,535 per kill so quadrupling the hp/cp actually hurts the CP rate
4: Reduce Trizek ring as well. I never understood the fascination with this ring really. I know the whole juggling via delivery box thing, but 2 hours is a long cooldown.

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As the OP's point: Dislike. That actually slows things down if you've spent merits. Why would you want that?