Aye, i've had some experience with rocket jumps in tf2. Though I'm terrible at those, so maybe that is why. Also, I kinda suck at those 'redirect' moves in general, so maybe that is why I had some difficulties.
Also, the idea of being able to shoot the sphere to do more damage is cool! never would have thought to do that, but I like mechanics where you can shoot a projectile, and then aim at it to do something new. or more powerful.