you can better fold in the dagger on planing speeds, gives you more controll and makes you prepared for boards without dagger ;)

Thanks for telling me man I did notice I could like fall back more and try to reach for the foot straps but I did lose some speed doing that, well I guess I have a bit to learn before I can buy a board without centerbord :)

Is that a dagger ?

a dagger is an extra fin that you can fold in, it gives more stability and keeps you in a straight line on lower speeds but are useless when it comes to planing imo