It was very hot and humid with a gentle north easterly wind. Visibility wasn't too good and a sheet of StratoCu between 700 and 1000ft could be seen about 1 mile to the east of the airfield. There were a few launches and launch failure practice before the StratoCu reached North Hill and caused a stop for early lunch. After lunch the cloud burnt off and vis improved a little and circuit training continued. Mark C took Mark L and then Liam for some field selection practice in the Rotax Falke. Guy brought in a group of work colleagues for a Trial lesson evening.