That's what practice is for, and why different balls are important. A benchmark will give you a read on the lanes - a couple of shots and you will hopefully know what you'll need to do for that night. The inside line can be a real benefit for you when the outside or track area is fried. Playing with the surface is also good, especially if its with a ball you're maybe not using as much... there's nothing to lose at that point, so try 1000 and see what it does on an inside line.
Finally, where I personally run into problems when I have good looks with multiple lines in practice. I can throw over 14 out to 5 and strike solidly and then try from 11-8 an d strike solidly (sometimes same ball, sometimes different... solid vs pearl, etc). I've had times where the game starts and I take 4 frames to figure out that even though I had a good look with both in practice, I started off with the "wrong" ball.
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