For those who haven't seen it, This page has links to PDF's covering all the information related to the new usbc spec. changes.
main page:
BOWLING TECHNOLOGY STUDY - CONCLUSION
https://www.bowl.com/BowlingTechnologyStudy/There are about 30 PDF's plus 6 videos.:
The conclusion of the research and for the specifications updates.
http://usbcongress.http.internapcdn.net/usbcongress/bowl/equipandspecs/pdfs/TechnologyStudy/2018BTSConclusion.pdfThe news release announcing the new specifications for bowling balls.
https://www.bowl.com/News/NewsDetails.aspx?id=23622331019I suggest you start here the FAQ's:Frequently Asked Questions (FAQ) on the new specifications.
http://usbcongress.http.internapcdn.net/usbcongress/bowl/equipandspecs/pdfs/TechnologyStudy/2018BTS-FAQ.pdfThe full Bowling Technology Study released in February 2018.
http://usbcongress.http.internapcdn.net/usbcongress/bowl/equipandspecs/pdfs/TechnologyStudy/FullStudy.pdfThe recent research related to balance holes and static weights.
http://usbcongress.http.internapcdn.net/usbcongress/bowl/equipandspecs/pdfs/TechnologyStudy/BTS-ContinuedResearch.pdfthe rest are about:
CORE TECHNOLOGY
Part 1: Differential RG Study
Part 2: Differential RG Study- Retest
Part 3: RG and Differential RG Study- Quantify Ball Motion Effects
Part 4: RG and Differential RG Study- Bowler Properties
Part 5: RG and Differential RG Study- Retest
Part 6: RPM vs. Ball MOI- Bowlers Rotation Study
Part 7: Adjusting RPM Rate Vs. Ball MOI
Part 8: Vary RPM vs. Ball MOI on House Pattern
Part 9: Summary of all Tests and Area at Pocket
Part 10: Area at the Pins- Retest
Part 11: Simulate League with E.A.R.L. on House Pattern
Part 12: Comparing Different Weight Balls on House Pattern
Part 13: Bowler Test Results
Part 14: The Effects of Balance Holes
Part 15: Side weight vs. large balance holes
Part 16: Imbalance Effects with Fixed Pin Placement
Part 17: Balance Hole vs. 3 oz. Static Weight in All Directions
Part 18: 3 oz. Static Weight vs Balance Hole - Bowler #1
Part 19: 3 oz. Static Weight vs Balance Hole - Bowler #2
Part 20: Adjustable Static Weight Ball with E.A.R.L.
COVER TECHNOLOGY
Part 1: Initial Oil Absorption Test
Part 2: Oil Analysis for Oil Absorption Test
Part 3: Surface Roughness Effect on Oil Absorption
Part 4: Oil Depletion Study vs. Ball Oil Absorption Rate
Part 5: Repeatability of Oil Absorption in Same Location
Part 6: Clean vs. Dirty Surface Preparation Water Effect on Oil Absorption
Part 7: Five-Person Team League Simulation Study
INDEPENDENT SURVEY
An independent research company was engaged by USBC to conduct an independent, objective, and research-based analysis of the effects of technology in bowling with USBC members, pro shop operators and bowling proprietors.
