The drivers in the game have real life counterparts obviously.. You buy an adjustable driver and guess what you can change the following: lie, draw/fade/neutral bias, and loft.
It would make these drivers and driving in general a harder task, but also allow for pre-match adjustments for the course. For example.. lower the loft for windy courses, or Kiawha with a lot of doglegs.
This would be a great way to improve clubs, and you can charge for the ability to do it. For instance buy a driver for xxxxx credits, want the weights and ability to adjust charge xxx credits.