quote: The link is a self-created picture showing my doubts about the track on a bowling ball. I've seen both of these tracks on different bowlers.
quote:The initial track on neither ball represents an inverted track, since they both start closer to the thumb than the fingers. The intial PAP on the first would be over and up, while on the second would be closer to straight over. To have a true inverted track, the intial PAP should be over and down. Most semi roller tracks on modern balls flare into a stable position that would indicate an inverted track. Maybe it is just a question of semantics. If you define an inverted track based on the stable track after it has flared out, then the inverted track is really the most common track.
quote:quote:The initial track on neither ball represents an inverted track, since they both start closer to the thumb than the fingers. The intial PAP on the first would be over and up, while on the second would be closer to straight over. To have a true inverted track, the intial PAP should be over and down. Most semi roller tracks on modern balls flare into a stable position that would indicate an inverted track. Maybe it is just a question of semantics. If you define an inverted track based on the stable track after it has flared out, then the inverted track is really the most common track.You're thinking of this wrong, ignore all flare except for the first flare ring. In this case, both are pretty standard 3/4 rollers, I don't see how anyone can call the second one "inverted" by just looking at the first flare ring.--------------------stanski
