RE: hovering
Once you gain some experience, you will find that it is actually easier to fly when it is more responsive. With the normal head, I can only keep my BCP in about a 2 or 3ft. box, but with the bell hiller, I can keep it pretty much steady for a whole pack. I can easily keep it from moving more than a few inches in any direction.
However, in the very beginning, any newb is going to over-control, so having slower response is a good thing. Just remember, as your skills improve, you may find that you start having a tough time keeping it rock steady. Once you hit this point, you are ready for more responsiveness in the cyclic...