I like Fidelity's retirement planning tools far better than Vanguard's. Vanguard's Financial Engine's tool has to be "tricked" if you are already retired and it comes up with a "safe" withdrawal amount that is far higher than Firecalc and just about anybody else's calculator hence I'm highly suspicious.
How do you trick Financial Engine's tool, if you are already retired? I find it irritating that you can't show a retirement date.