Great news. I know what a relief it is to breath better. I had two ss surgeries. The second one came about a year after the first one. I thought at that point I would end up doing one a year- good news.

That was several years ago. Subglottic stenosis is a mysterious process (even for weggies) and there is no way to know how many or how few will be needed. It follows a path independent of our disease process.
The good news is that the procedure CAN be repeated as much as necessary to keep our airways open. There is no way to know, or guarantee if or when you will need another procedure- actually this is just like before you had the procedure.
No guarantees so might as well hope for the best. Lots of people do very well- why not you??