Hi, Chevron. I remember as a 613 Staff Cadet, being briefed by Jacko and flying the Prefect after lunch. Bit different after the Mk 3!!. That was [no logbook] probably in 1959. S'Ldr Topsfield was around in my heyday, and was with us when we went on an advanced course at Halesland. Only one of us got a 'C', because the wind was not conducive to ridge soaring whilst I was there. The Prefects we flew there were HORRIBLE compared to the Halton one, seemingly pretty badly rigged, and awfully out of trim IIRC!!. Nice to see all the old names coming up. Huge amount of experienced instructors if they were still around in your day, as well as mine!!.