The sails almost looks like windsurfer sails trimmed for a lot of wind. Have to be quite an amount of downhaul applied..

The F18HT class rules does specify that you can just use 1 set of sails in the same event. So the sailors probably brings their best all-round sails.

The snuffers on the two boats above is quite different. One looks like a Marstrøm snuffer with a shorter pole, while the other is the 'regular' bucket. Looks like 'the optimal' solution has not been found yet, and nobody uses the Marstrøm 'snail house' snuffer.