This is actually a good point. I indeed have. For example look at Buste. He has some wild warm up strokes, but watch his follow through... perfectly straight. Same for Efren, same for McCready, Breedlove sometimes. A swerve that you might see would only be after contact with the ball, and the DigiCue does not measure this part. Only before contact.
Backstroke pause and finish might score low if the player is rushed, but those are features that can be turned off. Straightness is the core of the product.
Well, I’ve actually played Busty, Efren, and McCready, (and Pagulayan and a couple of the other Filipinos) and have had a real good view of their strokes, which is something I always pay attention to when playing champions.
As I understand your measurements I would not agree with your asessment of how they would score.
Lou Figueroa