@earlthepearl
Hello - Welcome to Mayo Connect, where we are a group of people living with all the conditions and diseases life sends our way. We try to encourage one another along the way, but we are not pros, so we don't try to diagnose or treat one another.
It is really great that you are being closely watched - the key in many situations is that stable is okay, rapid change is bad. I am assuming that your team has also taken steps to keep your blood pressure under tight control as well. sounds like you and your doctors are on a reasonable path - a lot of medical care falls into just such a plan as yours "watch and wait." The things docs look at, besides the actual size at the time of measurement, is a pattern of accelerating growth, your physical ability to handle the surgery, and any other health issues that might make surgery inadvisable.

If you are comfortable with your care team, I think you can safely take a deep breath and relax - you do not seem to be showing any pattern of rapid growth.
How do you feel about this path?
Sue