The standard phraseology for initial calls CHANGED with the last ammendment to CAP413.
It is now simply "[UNIT] this is [STATION]".
Dusty_B, which version of CAP413 are you quoting as "the last ammendment"?
I've just downloaded the PDF version of
CAP413 Edition 15 (Amendment 1 - 17 December 2004).
And in Chapter 6 on Page 24 it gives the example first call "Westbury Apporach G-ABCD request MATZ penetration", similarly on Page 25 "Westbury Approach G-ABCD request Radar Information Service".
RC