Nearly blue day with a few very small cu marking some climbs. Base at 4000, rising to 4500. Tricky getting around Wittering ATZ, Sibson and then the Marham/Lakenheath gap, but the wind was kind at 17-20 kph at height and just the right direction. UK Winch PB for me, and equalled my UK PB (which became my target past 100k). Continuing to Lowestoft is possible, but for me the day was dying.