Quick question on phraseology. I fly out of 06C west of O'Hare Intl, and often I take advantage of the excellent radar coverage, to request flight following. My call to Chicago Approach is straightforward: Chicago Approach, Piper 4-3-3-5-K, over Bartlet, requesting flight following. ATC comes back, assigns squawk code, then comes back to verify radar contact and at that time they usually ask me where am I heading and how they can help. Very friendly, very nice service. Sometimes I hear other pilots specifying "VFR" in their request for flight following, e.g., Chicago Approach, N-C-C-1-7-0-1, 1-0 miles west of OHare, VFR, requesting flight following. My question is this: is the VFR specification necessary when requesting FF? I thought that explicit FF exists only in the context of VFR flying. If you are IFR, flight following is a given, right? Thanks.