Another South coast UK rider. I am around 68 kilos and use wave kites- Religions- and have a 5, 7, 9 and 10.5. Bit of an overlap between the 9m and the 10.5m to be honest but don't want to give up the possibility of riding on lighter wind days so the 10.5 stays.
I ride strapless and have a 5'8'' custom. Suits me pretty well but I am very tempted by an H Evo.
As so often people ended up listing the brand and model of their equipment (who cares) without actually explaining their choices or preferences.
Used to use a 5'8" fish for a lot of riding. Very nice 32L quad for small waves and chop, but then foiling happened and it went to the basement. I'll foil right up to the point its good on a 6'1" thruster. I tend bigger board and less kite. The thruster is 28L and just right in waves but bouncy in chop, but since foiling the thruster is only out in nice conditions.
Have a couple of strutless kites and a couple of delta strutted kites to go with. Usually will be on the strutless if I start on the foil and deltas for the windy/stormy/gusty stuff, but they cross over well enough when it happens.
kite sizes are 9/6 delta's, 8.5 strutless and 6m two strut kite. Have a 7m C that works in the right conditions but haven't used it in a while.