My baseline forecast shows NW holding steady thru year 20, before it begins dropping off. Firecalc shows an average ending balance higher than the starting balance. So, tough to say where the peak would be. I do expect that at about year 10, we would undertake a thorough review - are we above/below plan, do we need to make any radical changes, etc., so we can make those change early on if we need to.
P.S. Pension and SS are only about a quarter of our total spending plan (including taxes), so our retirement will largely be funded by investment income/assets - relevant as to why our NW won't necessarily keep increasing. That said, there are some Firecalc results that could take us well into 8-figures if the stars align or to the poorhouse if we don't pay close attention and take early corrective action. In my modeling, those first 10 years seem to be the most meaningful. If make it thru the first 10 unscathed, then not much else seems to matter to the models. That said, those first 10 seem like the biggest opportunity for fun, so might be tempting to blow thru the budget.