Janet,
I just read your post, and yes I do believe that the more radiation treatments you have, the better chance for saving your hearing.
As far as facial paralysis, radiation is a lot less riskier.
Go on the ANA website and go under Patient Survey and open the 2012 survey or both of them.
I had 27 treatments of radiation which is called Fractionated Stereotactic Radiation.
My doctor insisted that I have nothing but 27 treatments to help spare my balance and hearing.
The radiation is given in small doses once a day so that your cochlea and semi circular (balance) nerve don't take such a hit all in one day.
The 27 days went very fast, and I even drove 2 1/2 hours one way on winter Wisconsin roads.
So far, I have not lost any balance or hearing. I had my 27 treatments done in December of 2013.
If you can find a facility who will do 27 treatments, that may be better yet.
Check out the survey. Also if you joint the ANA, you have access to the speakers who spoke at the 2013 symposium.
That was a tremendous help for me.
Send me a message at sandyinwisconsin if you wish.
Sandy