That's also another point though, you can't realistically adjust for all that. Even if you inspected all the pins right up on the deck before throwing the shot, took a magnifying glass to the lanes to see exactly where the oil was at, got a reading of the exact volume of every inch of the line you intend on throwing, obtained a map of the lane topography, the probability of you literally throwing a perfect shot is so astronomical it's laughable. Even then, the pins have to all make contact with each other perfectly, and the ball has to deflect perfectly to split the 8 and the 9. I was exaggerating for the sake of a point, the flawless shot is a literal impossibility, and even a flawless shot relies on physics "behaving," which requires an incalculable amount of things to happen "correctly" due to the shape of the pins, their spacing, density, surface integrity, thickness and bonding of the coating, etc.
If you're bowling 5 man teams, it's entirely possible for burn or carrydown to set in enough to cause a difference in your shot.
A pin being 1/4 off can make all the difference in the world when it comes to physics equations.
So if you are responsible for leaving an 8 or a 9, you would also have to be responsible for tripping the 1-2-4 from behind. These are purely logical and mathematical statements.
