Gatwick test protocols!!
My Beyne test was the same as yours Benwizz, but my H-W was significantly different in places:
1. I only did the H-W test once, with the lights on, as you describe for your first run.
2. I was not offered a second H-W run of any format (lights on, in darkness, whatever).
3. For H-W the colour pairs were shown for 1-2 seconds max, certainly not 5 seconds.
Also for my Beyne, which was done in near darkness, I was only allowed a few moments for my eyes to acclimatise. Mind you I didn't ask for time to acclimatise, did you ask, or was it offered, or did it seem standard proceedure?
Does anyone think I've got a case for complaining, or a re-test? How would I prove what my experience was on the day? I've had the official letter classifying me as "CP4 colour unsafe" so I think it would be a battle...?