cFIRESim - conservative initial portfolio changing to 100% equities over time
cFIRESim allows gradual portfolio changes with time, so I thought I'd see what I could do with a conservative initial portfolio during the "critical years"
I used the cFIRESim defaults, solving for the maximum withdrawal amount for a 100% success rate.
Constant 100% equities: 3.49% maximum withdrawal rate.
50/50 portfolio changing to 100% equities from 2015-2028: 3.55% maximum withdrawal rate.
That was the best portfolio split and timing I found. So, not much difference as far as I could tell. I don't know what the final portfolio values would be for either case, but I'm sure the 50/50 portfolio comes with some cost there.