Assuming you have until 2040 to retire, which is 24 years, I would just go with IVV.
IVV has a MUCH lower expense ratio, only .07% vs .77%. IVV has a higher dividend yield, 2.25% vs. 1.47%. The risk, i.e. beta, is similar.
IVV has returned more than FFFFX. I would suspect that after tax gains, since there is little capital gains tax if you hold it, would be less too.
Stay away from mutual funds. They are too expensive.
FIRE no later than 7/5/2016
at 56 (done), securing '16 401K match (done), getting '15 401K match (done), LTI Bonus (done), Perf bonus (done), maxing out 401K (done), picking up 1,000 hours to get another year of pension (done), July 1st benefits (vacation day, healthcare) (done), July 4th holiday. 0 days left. (done) OFFICIALLY RETIRED 7/5/2016!!