How many of you have chased down a shot and then realized a few frames later that if you pulled a different ball out that you could maintain your original line?  I usually chase down a shot for about a game and then grab a different ball.  This last thursday, I came across this again, but started switching balls earlier than usual, and realized that if I start switching balls earlier then I do not need to chase down a shot.  I think that when this thursday comes around that I will switch balls a frame or 2 earlier and see what happens.
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It does not matter what type of shot you throw, it's the results on the scoresheet that counts.

I guess it depends on the type of shot whether I chase the condition or not. If it's a tougher shot I tend to stay with the same ball longer and make subtle line/hand position adjustments- but if it's a shot where the conditions move quickly in terms of oil migration, I may switch balls rather than chasing the shot.

Matt