The fins themselves are on a spring so they can be set to move up and out of the water when going over no wake speeds but always do so if they come in contact with the bottom. The fangs are stationary but shorter than the fins. Both are very strong so I wouldn't be concerned about damaging them by hitting bottom or something in the water.
![ละลาย (LALALYE) - DAOU PITTAYA ต้าห์อู๋ พิทยา [OFFICIAL MV]](http://i.ytimg.com/vi/wo6r9TgausI/mqdefault.jpg)
Great
how do the the fins hold up to boat rocking close to shore or accidental bottom contact
The fins themselves are on a spring so they can be set to move up and out of the water when going over no wake speeds but always do so if they come in contact with the bottom. The fangs are stationary but shorter than the fins. Both are very strong so I wouldn't be concerned about damaging them by hitting bottom or something in the water.
how do they work compared to having nothing