trim tab question

Are trim tabs really worth it on a V20? The best $50 I ever spent on mine was a Stingray brand fin that mounts just above the prop. I dont know why the boat factorys dont just install them. Its such a huge improvement. accelerates better, turns better, and planes at low speeds. you got a new boat after you put one on and you give up nothing in return. Drill 4 holes tighten 4 bolts and shazam...