Head of Kha'Zix ideas.

So with the changes to Rengar a few months ago, I feel like his reward for winning the special quest, "The Hunt is On." is almost void now, seeing as how the Head of Kha'Zix just gives full stacks to his trinket. Any good Rengar should be able to hit full stacks on his trinket by 30 minutes. So in essence, Rengar winning the quest just gives him a cool looking trinket to have in his inventory, while Kha'Zix winning gives a 4th evo point, which would never happen otherwise. I feel as if that is unbalanced, and am looking for ideas to balance that out. Maybe a new perk for the trinket, like increase on the pounce range, or cooldown-reduction like on the original Bonetooth Necklace. Bump this please. :D