Hi, I recently played the Rees Jones Course at The Breakers in Florida. I rented clubs and the Driver was an R11 with a Bassaro Shaft. I really enjoyed the club and called the next day to get the specs. Unfortunately, they weren't very helpful. I was told that the shaft was a BASSARO Standard shaft. Any idea what the exact spec's of this rental shaft would have been in terms of weight, Flex and Kick?