The 'rule of half' is always a good one: make about half of whatever adjustment you think you're going to need, and try it out for a while. It can take some time for things to settle in, and changes in humidity, for example, can alter things too. Part of the definition of a 'wolf' note for me is that it's
problem caused by the alignment of resonances in the structure and air: if it's not a problem it's not a wolf.
I once built a small guitar for my daughter that ended up having all four of the strong lower range resonances (top, back, air, and neck) within the range of a whole tone. It sounded great for such a small box. Good thing: it proved impossible to move any of them.