I never got an email from US, but according to the CBP site I was eligible for precheck as a global entry member. So apparenty all I have to do is attach my trustd traveler number to my US DM info. Alas I haven't gotten to take adavntage of it yet because all of my flights have been international which apparently disqualify you from using the precheck lines. So I assume you only get to use it if you're flight is wholly domestic? Any US elites have any success with it yet?
Go Gators