Hi Krissy,
glad to help!
Since I did opt for CK, I can have other radio-treatments (gawd forbid) if needed. Yes, because I had CK. I believe it also is the same for those that opt for GK. There have been posts here (I believe in the radio or "archives" forums) about the technical aspects of these protocols and it further elaborates about the type of beams used vs other radio therapies. I think Mark did a full on thread about it. It may be worth a "Search", if you are interested. Why did I choose CK vs. microsurgical? Oy, tough, long question for me to answer but I'll try to be brief.
I have many other medical ailments. The first part of my decision process was (for me), did I want to go "invasive" vs. "non-invasive". In my case, due to other issues, I opted for "non-invasive". Thus, it boiled down to radiosurgery. Then, for me, the decision had to be made... which form of radiosurgery? Oh, did I do my homework on that one! Due to some of my research, which included personal consults with multiple radio-treating docs in Boston... and speaking to other docs familiar with the radio-protocols... and speaking directly to multiple radio-patients that already had their treatments, based on my personal goal to save my hearing... I took all the info/data I gathered, did a "pro/con" list (on paper, which, for me.. to see it visually, helped me to really "see" what choices I had)... sat back and made my decision for CK.
I think the key, for you, will to be to get the current size/dimensions of the residual that you have... and it's exact/precise location. Once you know that, then, to me... you can sit back and start figuring, based on what's available to you in your location (unless you are looking to travel) what will be best... and you know, regardless of what you do...we'll be cheering you on.
Hope this helped.
Phyl