100/100 is the mantra of Effective Velocity. That means being 100% on time with 100% of your swing efficiency. Most swing designs are focused on ‘Reacting’ and your best hope is to be at about 90/90 and occasionally luck into 100/100 contact when the stars align. Real science is not havin’ that. 100/100 is a process that is extremely scientific and therefore, repeatable.