As we all know, when you're using Rocket Jump, there will be a 10 sec cooldown on Parachute. And if we use Rocket Jump during a Parachute, it will go away, making you fall down to your death.
ROCKET JUMP!!
NOT ROCKET BOOST!!
This is an easy way to have BOTH Rocket Jump and Parachute:
/cast Rocket Jump
/use 14
14 = your cloak
This will use both cloak and rocket jump and you will have both at the same time! But you need to jump before you press the macro or you will get "Cannot be used on the ground" error
Enjoy