drivers -- wood golf clubs home :: wood golf club driver HVC-3, Beta Ti-3 with Trampoline Effect Wood Golf Club Driver By now you must certainly heard of Callaway’s controversial ERC driver. Banned by the USGA but okayed by the R&A, the ERC is now legal for amateurs although it’s still banned on the PGA Tour. And why has then been so much of a hullabaloo? Simply because the ERC sends the ball too far! &nbsp..