I put the viper tour head on the new Aldila DVS shaft and played over the weekend. The head is rock solid, and the shaft is everything Aldila says it is. This is a great combination and well worth the money. Please note that ballflight is low with this combination. If you are used to playing a 10 degree driver, order at least 11 degrees of loft on your new Viper head. In fact, to get the height I was getting with my 10.5 degree Ping G5 you will need a 12.5 in the Viper tour.