Driver head volume and "concave" heads

[sm1gt]

This just popped into my head. AFAIK driver head sizes are limited to 460cc. How does that come into play for concave driver like the Nike drivers, which have a large concave section towards the underside rear.

Wouldn't this theoretically allow a much larger face size to due reduce total head volume?

 

[Maninblack4612]

No, because the Rules state that the volume has to include the volume of any cavity.

 

[Maninblack4612]

http://www.randa.org/en/Equipment/Protocols-and-Procedures/Clubs/Clubhead-Size.aspx

5.3 Prior to measuring the volume, the clubhead should be inspected for any large concavities. If large concavities are present they must be covered with tape.

 

[sm1gt]

Short and sweet, thanks very much!