IMO. Make sure the shaft profile of whatever driver you choose fits your swing.
With the wrong shaft too many of those 300 yard drives can end up 100 yards in the woods.
P.S. You can't go by how a shaft is labeled. Different shafts (even from the same company) labeled as "Stiff" or "Regular" won't be identical so buying off of the rack is a crap shoot, even if you have hit the same name driver with the same shaft label. A good club fitter can check the overall shaft profile to make sure it's what you need.