I know how it feels to write down your PPC ideas and not know if the community at large will accept them, but I feel like you might be overdoing it. Like Neshomeh said, perhaps you could ask some friends to give their feedback on your work before turning to the Board.

I would suggest you perform a "Wiki Walk" on the PPC Wiki, like I do sometimes. Read pages and when you come to an interesting link after you read a page, click it, read that page, repeat the process until you've gotten from the CAD to an agent's Bios to flower genders to what have you.

I say this because you ask what CADs do for agents, where if you went to the PPC Wiki's page for "CAD", you'd find that a handy chart gives a readout of "[Agent Person. PPC Agent. 2.03% Sue.]" for Character Analysis Devices, CCADs, and- in my case- Cheesy.

Stop relying on us to explain and go to the Wiki, were we've (er, other people have) already explained it.

Samantha is a different person when her environment changes, everyone would be as well.

But some things will be the same. Playing with what changes based on environment and what doesn't can help you narrow down the essential qualities of the character. My character Jenni, for instance, has been in about a zillion RPs. She's been an anthropomorphic fox, a wizard, a harper, a wandering healer, a psychic, and a shrink—but she always wants to help people. That's what's most important about her and most defines her as a character. The rest is about as important to who she is as what clothes you choose to wear each day is important to who you are.

my primary team really isn't permission material and my secondary team isn't acceptable

Preventing unacceptable characters from being written is, uh, sort of why we have the Permission process. If the ones you've got won't work and you can't fix them, the thing to do is chuck 'em and start over, not go ahead and write them anyway.

Criticize me for asking before ready, then criticize for needing to work this way.

I'm actually criticizing you for publicly working this way, since I don't actually have the power to reach through the computer and stop you from doing it privately. You're visibly flaunting the rules, and it really needs to stop. Plus, like I said, if you absolutely can't function without feedback, there are ways to get it other than crowdsourceing everything to the Board (which is not generally approved of anyway).

As far as the questions you've mentioned here... have you considered that perhaps you're getting too wrapped up in the minor details? I have this problem, so I can relate. Sometimes that one little thing you're worrying over so much doesn't actually matter, and your story will benefit from letting it go. For instance, who cares which particular version of Earth someone came from or how they figure it out? If what's important for the story is that they do figure it out and that the character goes home, just say they did. The PPC has technology and other resources from all over the multiverse. It's perfectly reasonable to just assume this happens give enough time.

~Neshomeh