Kev: are you in a position timewise and financially to book one (or two) week(s) off to fly every single day: Reading your story it seems you suffer from the between flight gaps and end up in a two steps forward, one step back situation.
Do you think an episode of constant immersion for a week or two might help 'burn in' the stuff you forget into your cerebral hard drives.
If the time could be coordinated with a visit by the examiner at the end I'm sure you'd wing it.
Keep at it and good luck
Cusco
