Winter has started
First day after the summer time ended: temperature dropped to 8 degrees, NE wind, but fortunately Sunny.
Wind was good at the Grevelingendam.
Doubted between larger sail and the Crossride 6.6 water still looked rough. So choose the 6.6.

iSonic 101 with Crossride 6.6 and SL-X 36cm
Get up and planing, directly from inside the bay to the outside. Chop was a bit nasty, but the SL-X seems to give the board a lot of control.
Unfortunately wind began to die off after an hour, and getting upwind became more difficult. To shore for a different set or larger fin.

iSonic 101 with Crossride 6.6 and S10 37cm
The S10 37cm clearly has more lift than the SL-X, but it did not really help that much, with difficulty could get planing, then the wind was gone.

Was nice to get a fresh head after a night partying.
For a NE wind, it was nicely constant.

Grevelingendam

14:30 1.25 hour Wind: NE
Board: Starboard iSonic 101 - Sonntag SL-X 36cm
Sail: North Crossride 6.6 - North Platinum(11) 460 - AL360 E3 Carbon 180-230
  First time with a Sonntag SL-X. Not with a race sail, but with the Crossride 6.6, vin worked also good. SL-X seems to make iSonic run even better on the rails than the SL-P, also more control. Also upwind the fin seems pretty good, first impression. But with dropping wind, the vin was too small.
15:45 0.5 hour Wind: NE
Board: Starboard iSonic 101 - Select S10 37cm
Sail: North Crossride 6.6 - North Platinum(11) 460 - AL360 E3 Carbon 180-230
  With S10 is clearly better with less wind, unfortunately wind dropped too much, could only plane for little. A bigger fin would not have helped.