I’d concur with Andy; I qualified at a similar time and we had one brief lab on Book and nothing on headset bio. I swapped to volk about 8 years ago and although it took a bit of getting used to there’s no way I’d go back. I rarely use direct (wheelchair bound or really small kids) and every time I’m reminded just how poor it really is! The view with volk is vastly brighter and sharper and you don’t need to dilate anywhere near as often. I sometimes wonder what things I missed when I used direct!