Use your driver as a free speed trainer in the off-season
The instructor recommends using your driver itself as a speed-training tool during winter or off-peak training: hit 20 to 25 drives a session, hammering the driver. He says after a couple of months of this you'll be shocked how much your clubhead speed increases, and frames the driver as a free alternative for people who can't afford Stack or SuperSpeed speed-training systems.
Channel: Club Champion
Watch official source at 14:34