rush forms

I'm starting at Tech next fall and am beyond excited! I've already filled out the form that Delt sent me for rush, but I was wondering if since I'm rushing more than just Delt, if I should fill out the rush forms on all the other fraternities I plan to rush, or if those are more unnecessary since I believe you already meet every house at rush anyways. If anyone could shed some light on this, that'd be great! Thanks!