From your video, it would appear minor layout variations can make a difference in ball motion. Was that your intention?
Yeah, that's what I wanted to show. They've done a decent amount of other videos, some of them are interesting and others are plain silly.
Drilling what appears to be 1-1/4 inch wide by 3 inch deep hole is not what I would consider a minor layout variation. That has the potential to alter the core shape and drilled Diff/Int. Diff.
On the other hand, varying Pin to PAP distance between the 3 to 5 inch range, especially on an asymmetrical ball, and VAL and Drilling angles by 5 to 20 degrees, are what I would consider minor variations that generally produce negligible differences, especially compared to sanding the ball one grit level rougher/smoother.
The guys that produced the video are interesting alright. They put together a different video suggesting location of the CG doesn't matter, then asked USBC to repeat the experiment with their throwbot. When they didn't like the results, they created a third video throwing the balls on concrete until one broke in half. All of these were a different company's balls, that had previously produced a video suggesting CG location (positive/negative side weight) does matter, and an attempt to discredit them. The way I see it, it's all politics and advertising, not science.
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