Pete and Mike,
One ill-fated year in decathelon. Best PV was 15'1". I was primarily a High Jumper and later a Triple Jumper. But my room mate was a 17'5" pole vaulter. Short, wide and muscular.
We used both the white (what we used to call "ankle tape") tape and near the end of my college career used grip tape.
If you've every been around pole vaulters, one thing you learn early is don't get into a handshake grip contest with them. Most of those guys can crush walnuts between their thumb and first finger. And they have hands that are one, big callous. They used to use the white tape wrapped as Paul describes then soak the tape in naptha so the glue would melt a bit. Then wrap their top hand around the softened glue as tightly as possible. Kept the top hand from slipping on the pole when they hit the plant box and bent the pole. Those Pacer poles were pretty tough to bend. Problem was, when the completed the vault and were over the bar, they had to let go of the pole. Not so easy when your hand is glued to it. So they used a sort of pitching motion to snap the pole out of their hand. Ouch! It would often take a piece of their palm with it. Not uncommon to see pole vaulters with chunks of meat torn from their top hand palms. Tough guys with the upper body strength of a tank.
Us high jump types were tall, skinny with a ridiculous ability to concentrate. Made for kinda weird guys.