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If it's steempower yes. if it's SBD or steem it's always moveable.

What do you think about what @artwatch just posted below? It's contradicting what you said and what my understanding was.

I think I have been doing this long enough to know how it works. :)

Edit: Unless there is something new with vesting accounts, which would make no sense to me, every time I start a power down it's 13 payments 1 per week.

It used to always tell me "13 payments," regardless as of last week, which was after the most recent fork, I still got 1/13th of my balance paid out before I stopped power down.

Yeah, what you said sounds more familiar. I think you're right and I think that there might have been a change in the past year. And thank you!

Your account is over the "initial investment" or else you would show two steempower balances. I'm 99% sure it's 13 weeks for you, but who knows, anythings possible.

what does that mean that my account is over the "initial investment" ?

Basically when you join steem they give you ".50 cents" or whatever to start your account. Once upon a time it was a lot more than that, but it's different now. When you are basically using "borrowed steempower" that you haven't earned yet, you aren't fully vested.