There's no point in gearing for Doubleshot as a monkcher:
10k stars: Activating this ability reduces your Extra Shot by -100% for 45 seconds.
Manyshot: Activating this ability reduces your Extra Shot by -100% for 70 seconds.
The optimal cycle is: 10k stars (30 sec duration, 60 sec cool down), Manyshot (20 sec duration, 120 sec cool down), 10 sec autoattack, 10k stars, 30 sec autoattack. Rinse and repeat. That's leaves a meager 15 seconds per cycle where you would benefit from a doubleshot bonus. 87.5% of the time you won't benefit from doubleshot.
I totally understand why doubleshot should be disabled during 10k Stars and Manyshot. But why the hate after those effects have ended? There's only 40 seconds per cycle where either ability isn't active.