MC --> F
I am taking my first flight on VX in a couple weeks.
I am currently in a middle in the back of MC. I want to try out F though I also would rather have MCS than what I currently have.
Is my best strategy to go from MC to MCS at 24-hours then to F at 6? Can you do it like that(i.e. double upgrade) if space is available? The net cost looks to be the same.