David is a professional. He knows how much to challenge me, sometimes to accomplish more than I thought possible! I started with David 30 pounds heavier and unable to do two push-ups. I was growing heavier, weaker, and older. David helped me reverse two of those trends, and I feel like the aging has slowed. My doctor is impressed. My progress shows in lab results. My A1c level is normal. My body has gotten lean. Hopefully, diabetes is not something I need to treat anytime soon. David got me into Aquakinetics, which has been a real thrill. Everyone should try that. Training with David has been a good experience over the last 18 months. I plan to keep it up.