First Endurance Pre-Race Supplement

Anyone tried this “Pre-Race” stuff from First Endurance?

http://www.firstendurance.com/prerace.html

PreRace is designed help endurance athletes improve performance. The Pre-race formula provides all the necessary ingredients needed to increases mental stamina, increases time to exhaustion, increases maximum workload, improves mental clarity and increases oxygenation of muscles (1,2,3,4). Features include caffeine, taurine, qurcetin and a proprietary neuro-stimulant blend. PreRace comes as a flavor free powder which can be added to any pre-exercise or during exercise drink, like EFS.

IMPROVES CARDIAC OUTPUT & PERFORMANCE
PreRace is designed to stimulate the Nitric Oxide (NO) system, increase time to exhaustion and improve performance (1). NO improves blood flow, clears lactate and delivers more nutrients to working muscles. Citrulline Malate and Taurine have been shown to enhance cardiac output leading to numerous endurance enhancements (2) .

INCREASES MENTAL CLARITY & FOCUS
This Pre-Exercise supplement also improves cognitive function and mental clarity through CNS stimulation (6). PreRace is formulated with a proprietary Neuro-stimulant blend that contains diMethyl amino ethanol (DMAE), metabromine and catechin to improve mental acuity (5,6). This special Neuro-stimulant blend works synergistically with 200mg of caffeine and quercetin to improve time to exhaustion and increase maximum workload (7).

An easy way to see if they work would be to give them to some joggers and see if they turn into runners
.

well it has NO in it. I have tried NO before it works on weight lifting seen no benefit at all for endurance events.