At arrival it all looked very tame. Eventough 2 others where rigging 6.2 I decided to take in account the gust so rigged 5.5
When I saw 1 of the guys called Bas doing his first run it looked good, but it ended pretty soon into a white cloud of spray / crash. I was happy I rigged the 5.5 but when entering the water the wind got enormous strong. It was even difficult to keep the stuff on the water while walking towards the right depth. I thought this would be record conditions, so got onto the board with a smile and prepared for the first run. This one ended flying up in the air when there was a gust over a gust situation, followed by a big bang. I was still hooked in, and when getting the stuff back in place I felt the boom was slobby. WIth a sad feeling I thought this was the end of the session allready caused by a broken boom, but luckely it was the boomhead which opened. Looking at my watch I saw max speed of 67 km/h max so this must have been the speed I flew in the air around my mast. 

From than on I took it a bit easier and when the wind dropped I had a very nice and easy session sailing and just enjoying the chop and underpowered 5.5. 
Also I now finally sailed some km's with the tribal sym speed 27. This fin fits the invic. 88 nice, but for the invic. 74 I couldn't really get it to feel balanced. So I think the 25 cm is the right one for the 74, also in choppy condition.