At 14, my oldest son was running a 7.15 at a PG showcase and even through most of his senior year he couldn't get sub 7 and was frustrated. His times were like 7.09, 7.01...He just didn't have the right technique. My younger son, wasn't able to get below 7.2. Some of their teammates had success shaving off time after some sessions with a speed coach and so my boys gave it a try. They were able to shave off enough so that both are consistently under 7 (6.7 and 6.9) after just a few sessions. They were always capable but this coach taught them the techniques to streamline things and shave nearly half a second off. I can see their motions are quite different and they look like they run with purpose instead of like buffalos! The speed coach wasn't expensive.