I was a tad disappointed because I thought the Fast Boot upgrade would mean I could charge the FSD quicker under normal cirumstances when jumping from system to system.The fast charging feature is only needed for open game when you is interdict by people.
Recovering from cooldown would've been really handy during my 93 million interdictions over the last couple of weeks too. It's kind've ironical when you think about it.
But thanks anyway, Fdev.