Hi...I'm in Littleton.  I had Gamma Knife at Swedish three years ago with Dr. Muckle's partner.  There is an AN support group meeting in Denver about every 3 months or so, which you might find helpful.  Also, there is an AN Facebook support group -- it's quite an active group and will be able to help you with this question.  Many in the group refer to an AN expert in California, a Dr. Friedman, who only does AN surgeries, so he's done hundreds & hundreds - he does free consults over the phone.  The thing to beware of in the FB group is that there are people who hang around & comment because they've had struggles following their surgery (in my opinion).  Of course, there are a lot who had good outcomes, but I believe they don't comment as much.  Overall, the tone is positive.  I find a lot of understanding for being almost deaf in one ear & also having facial paralysis after GK (there's a rare chance of facial paralysis after GK, about 1-2% I think).