i have almost 20 track balls now.the 919 was a decent ball not a great one.but still good never the less.once you drill them sometimes i notice the sometimes become shot specific.had mine drilled pin right under finger no weight hole.sometimes it didnt roll well on a house shot but took to a tourney at the state.the shot they had out the ball rolled like money.sometimes it wont work and then there are times you will be glad you had it.i hated my 508a when i first drilled it.i have been putting different drillings on the new stuff.then they changed the shots in our leagues now its the only ball i want to use.if you dont like it dont give up on it.just put it away and use it later it will be just like a new ball when you pull it back out again.