Is Heater F35 Driver Nonconforming?

Heater F-35 Cup Face Black Titanium Driver Head
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None of these driver heads are sent to the USGA for testing. There is no confirmation letter from the USGA. The Heater F-35 was not intentionally designed to be Non-Conforming. There are some driver heads that are Non-Coforming by purpose. Illegal by size are Integra Sooolong 750, 650 and 550. Illegal in terms that COR is too high: Integra Sooofar Cast driver, Geek No Brainer 551 Hot Version and Geek Golf The Ball Breaker.
Answered by Monark Golf Admin on Dec 10, 2019
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