Hi DR,
seems like only last week I was in the same boat. Mine was 2.2 cm, larger than yours, but I still had the radiosurgery option available. Ended up going for surgery after much deliberating. I am also not the watch and wait type, however, it took me 6 months from diagnosis to surgery, so don't jump into anything too fast, you will need time to digest the news (even if you think you did already), get used to it, and research your options. I would also take into consideration where you live - are both surgery and radiosurgery available near you? who are the surgeons/radiologists? can you travel if need be? is insurance an issue? how about your overall health? support/time off after a procedure? All things I considered.
Just some thoughts. I wish you the very best, prepare for a lot of reading and changing your mind a few times, just don't think it needs to be done next week, take your time.
Helga