Ski Info. ( Fin foil on slalom skis )

Fin Foil/ Wing/ Spoiler
The fin foil is an attachment that primarily aids the skis deceleration prior to turning.
It also reduces tail twitching (from poor body position) on some skis through the wakes.
Factory settings will be between 5 and 10 degrees depending on the ski.
For recreational or social skiing, the fin foil provides only a relatively small benefit and can be removed.