It would be a better educated guess than just grabbing a club off the shelf. With such a large cost investment, I choose to get the fitting and take out any guesswork that might result in a waste of money to have to sell it used and try again. With most fitting costs being applied to the purchase of the club, it’s basically a free fitting. BTW, my driver shaft is a different weight than my fairways so it sometimes does matter to fit them differently.