Remo Spagnol is an ultra-runner.  He's completed 25 races 100 miles or more including I believe 3 - 200+ milers.  He is an ultra-running coach with great experience and expertise in sweat testing technology and applying that to hot weather running.  His record speaks for itself with quality finishes in some of the hottest races on the planet including Badwater and the Keys.  Check it out and check out his coaching site.  Custom Coaching with Remo Spagnol - GoBroncoBilly@remo_spagnolPrecision Fuel & Hydration (precisionhydration.com)