It depend on the size , Width and placement of the fin . I fin the is wide at the base and dont narrow out or doesnt have alot of rake with give hold for tip time and take a little bit of effort to turn on a dime with. while a fin that narrows out alot or has a lot of rake in it will be really responsive. Also size of fin compared to the size of the board has to be thought about as well
zach, i think you've been riding the wrong fins in your singles.