VGS Medical
Hi Tom
I had my VGS medical recently and the audiogram seems to be exactly the same as it was when I went to OASC (test each ear on a range of frequencies). The standards to pass are lower, though.
I also have a civvie Class 2 Medical and the RAF doc assured me that the standards for VGS flying are lower than the ones required for this, so if I were you I wouldn't worry at all.
Hope this helps.