I do have a few W&W studies if you are interested , one is lead by Rutka and the second study is British - please PM me your email and I can forward them to you. Both are now a few years old. Mikey made reference to a Danish study on the W&W thread but I have yet to find reference to it on the internet. (I have a tendency to read studies!)
I am several mm's behind you so am in a pretty good position. I like your analogy of war vs peace. The decision to treat and how to treat is so individual that it is difficult to compare. I, so far, am very happy with the 'make peace' approach. My tumour is very small and causes very few issues. Dr. Rutka's study is very clear that not treating tumours will result in hearing decline regardless if the tumour grows. However, IMO, surgery generally has very poor hearing preservation rates and radiation isn't likely to preserve over the long term either (i.e. very similar to W&W).
So, for me - would treating proactively help in the long-term - and I don't think so. I will lose my hearing but I have a very good chance this tumour may never grow (i.e. the Rutka study of 65% of small tumours don't grow and this new Danish study). I will show up for routine MRIs (the likelihood of this tumour having a tremendous growth spurt and going from very small intracanicular to pressing on the brainstem is highly unlikely) and keep reading studies to see where I get to.
We are getting ready for ski season here in Calgary (despite having awesomely warm weather at the moment) and I am even contemplating figure skating lessons to somewhat keep up with daughter's skating life.
I am so very lucky to have a small tumour that has so little impact on my life. I hope it works the same for you.
PM if you are interested in the research!
PS - my tumour is entirely intracanicular as at the last MRI. As one of Rutka's associates once told me, the ENT community doesn't typically look to measurements until its expands into the CPA as intracanicular tumours can't possibly compress the brainstem. So while, my footnote indicates a tumour of 5mm x 8mm by ENT definition, I haven't even gotten to the starting line. Not sure if your tumour fits the same description or not - but feel that it is a necessary comparison for my laissez-faire attitude to the tumour. Aside from you can't compare treatment choices by individuals, you also can't compare measurements as my tumour is actually not out in the open yet!