At this time, primarily about $40 a club to buy off the rack. To get fit to be sure of distance gapping and grind selection, and to order a shaft not the stock shaft, that would be an option only in the SM10. SM9 lofts and grinds may be getting limited being over a year since the SM10 was released.

There is difference in flight characteristics if you spend a great deal of time practicing your short game.