You are doing it correctly. Hardest part is deciding. I took 3 months for a similar sized tumor. Get as many opinions as you can stand. I went out to Stanford, contacted Pittsburgh, and ultimately settled on UVA for gamma knife. I wanted no part of surgery. If you do your due diligence and make a decision, stick with it and be confident it was the right one for you. Depending on insurance, go to the best place you can find depending on what method you choose. Personally, I'm not a fan of watch and wait. If you are symptomatic, the longer it grows the more damage it can do and the less likely you are to get that function back. Additionally, it is just easier treating a smaller tumor and you are less likely to have regrowth or complications. Particularly with radiation, they calculate the dose you get depening on the size, and less is good. For surgery, I think they have a better view of the nerves with a smaller tumor as well.