If there was an all-star team of global positioning system (GPS) devices, reflector tacks would be in the starting lineup. They're the fingernail-size thumbtacks covered with reflective sticky-dots.

After honing your skills with wingfoil jibes, the next progression is taking your wingfoiling to the next level by perfecting the tack. Tacks are not only practical for changing your direction swiftly ...

What makes a great tack? It’s simple: whatever technique allows you to maintain the optimal combination of the best VMG during the tack and the fastest acceleration out of the tack. That’s easy to say ...