January 26, 2017 - 1:40 am EST 8 years ago 10 Training Aids From The 2017 PGA Show – Page 7 Dan Bier Follow 4. DuoTrac Another tech-savvy training aid, the DuoTrac focuses on weight shifting. Using sensors combined with an app, it utilizes 4D visualization to pinpoint exactly where your weight should be through the swing. Check it out. <— Previous Page | Next Page —>