Ok i am still confused over all of this and I'm sorry. Basically, i want to get a BW bite and use it as my medium heavy ball and it will fit under my hammer raw anger which is the heavy oiler. I want the ball to be a monster and was planning on going by the aggressive drilling instructions on hammer's website, drilling #3 or #5. I also want the BW Pearl, which i will be using as my medium oil ball, and will be below the Bite in the arsenal. Same thing, i want it to be aggressive. I am a tweener you could say, i throw around 16 mph. I like to play in the middle, throw it right, and have it come back to the pocket. I hope this helps at all with what kind of pin size i should be looking at. Thanks for responding, i really do appreciate it.