Let's start off by saying that, like the 4% "rule", most of us here use FireCalc as a guide more than a firm set of 'down to the dollar' results.
So, back 17 years ago when I first RE'd, I stumbled upon FireCalc, ran my portfolio balance with an age 95 end point. I've tried, succeeded and often failed to stay close to the guidelines, some years better than others.
I've often played with FC along the way more of a distraction than trying to update my results.
Now, at age 70 my portfolio is double what it was and I'm 17 years closer to my age 95 end point than I was back then.
Is there any value in re-evaluating FC's results with new inputs? Do the original results still hold?
At this point, I know it really doesn't matter but more interested from an academic standpoint.