After watching the pros and semi-pros shoot, it became obvious that they seldom miss hitting at least a single twenty. Resulting in their low scores of 60. I practice 2 hours a day and I have figured out how to hit the triples 20% of the time but I typically push it over into the 5's. Therefore my current precision has caused an unwanted plateau. Over the last week I have tried changing my stance, grip and spot on the line but nothing has worked as I think my muscle memory has years of bad DNA. Feeling defeated at the moment and have come here for your help. Although I wish for a quick fix, I am willing to dedicate many hours to resolve this. Any advice to become the accurate vertical phenom I want to be?