Need Aweber opt-in to pass on name/email to gravity forms questionaire

I have an opt'in page at [login to view URL] that has an aweber name+email opt-in form After visitors opt-in they are taken to a questionnaire here [login to view URL] (this is created by gravity forms a wordpress plugin The problem I have is it's rather time consuming to match the aweber opt-ins to the completed gravity forms questionnaire.. So I would like you to set it up that when a visitor opts in their name and email address are carried over and filled in a non-visible variable in the gravity forms questionnaire. Thank you