Blokkendam

15:15 0.75 hour Wind: SW 30/42 kts
Board: JP Single Thruster 75 Pro - K4 Stubby 16cm/K4 Ezzy Asymmetric 2x12cm
Sail: North Voodoo 3.7 - North XC65 380cm - Dynafiber Blacklunar 155-205
  (machine translated in 2023) Sail wasn't even up to the big chance, really trim on medium, and then sometimes it was minimal. In itself, the fins gave enough pressure, could walk height, but because of the very rough choppy water I could not really distribute pressure over both legs. A little too much pressure on my back foot when cruising over chop and I easily had a spinout.
16:00 0.5 hour Wind: SW 30/42 kts
Board: JP Single Thruster 75 Pro - K4 Stubby 16cm/K4 Rocket 2x12cm
Sail: North Voodoo 3.7 - North XC65 380cm - Dynafiber Blacklunar 155-205
  (machine translated in 2023) I had had a tip to go sailing without a toe-in in heavy weather. So replaced the Ezzy by 3 degrees with the Rocket without toe-in. I seemed to have less grip. Well, those Ezzy asymmetric fins are perhaps also very efficient, and also have more surface area than the Rockets.
16:30 0.5 hour Wind: SW 30/42 kts
Board: JP Single Thruster 75 Pro - K4 Stubby 18cm/K4 Rocket 2x12cm
Sail: North Voodoo 3.7 - North XC65 380cm - Dynafiber Blacklunar 155-205
  (machine translated in 2023) With the 18cm (instead of 16cm) middle fin I could put more pressure on my back foot, so I could sail a bit more relaxed. Still sail well, with medium trim sometimes still on the small side.
17:00 1.5 hour Wind: SW 30/42 kts
Board: JP Single Thruster 75 Pro - Select X1 21cm/Makani Walu 2x10cm
Sail: North Voodoo 3.7 - North XC65 380cm - Dynafiber Blacklunar 155-205
  (machine translated in 2023) As a test the 21cm X1 (first time sailed) with the Makani 10cm caught. As a result, the board has more lift, sails a bit looser. Certainly didn't feel like I had too much lift, but could put even more pressure on the fin without spinout, compared to the 18/12cm K4 setup. Striking, last time with less choppy water the 16/12cm setup worked best. So for choppy conditions better a larger middle fin for fewer spinouts.