I am firmly convinced that helicopters have a mind of their own, and their maneuvres are completely independent of the pilots attempt at controlling them.
I am very familiar with the collective, (using the throttle), controlling the vertical movements.
The cyclic, (using the joystick), controlling the forward/reverse/climb/descend movements, and the rudder pedals controlling yaw.
But operating any of these, in any order, is guaranteed to have exactly the opposite effect to that which the pilot wishes... ::)....!
Attempting to hover will result in the craft either going forward, backward, climbing or descending very rapidly, or just rotating round and round it's axis until your eye-balls pop out of your head...

....!
...which invariably results in a crash and an increase in next years insurance premiums...(if you survive it)....

...!
Been there, done it, many times....

...!
LOL...LOL...LOL...!
Cheers...
Paul.
(England).
Win 8.1 64-bit. DX11. Advent Tower. Intel i7-3770 3.9 GHz 8-core. 8 GB System RAM. AMD Radeon HD 7700 1GB RAM. DVD ROM. 2 Terra Byte SATA Hard Drive. Philips 17" LCD Monitor. Saitek Cyborg X Fly-5 Joystick. ...and a Briggs and Stratton Petrol Lawn Mower.