So I got really hot and heavy (got to third base) with this girl at the club on Saturday, but did not build enough comfort. We went back to her place, and as we're about to go upstairs, she says "I don't really know you enough, I can't do this, sorry."

So anyway, I was thinking of sending her a message this week (she added me on FB after I requested) telling her that she was incredibly hot, I absolutely couldn't resist her, and that I'd really like to try to get to know her as a person - without tearing her clothes off. Basically a variant on shock and awe.

What do you think?

I think if you want to see her again you won't mention that stuff and you just ask her out on a normal date. Don't over complicate this stuff. We don't want her to misinterpret the message and get upset.

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Been around the world twice, Talked to everyone once...

It's amazing how simple yet effective, JSmooth's answer is. Bottom line, you don't need to know anything except, call her and arrange a date.

Remember that women are different than men, you cant just pick up where you finished last time. You need to build attraction once again, also this time get to know her and build some comfort, then escalate and close the deal.
Take her out to do something fun and exciting.