I feel you 100% my man, I got the nub to be a trailer on my 7S superfish and its the perfect fix. My board isnt squirrely like it was as a twin and not as stiff as a traditional thruster. Its the perfect medium. Not to mention its a cheap little fin. Go KELLY!
WOW...i doubt if your riding a 7S you can feel the difference with the Knubster. Your not taking that thing out on overhead beachbreak SMH