T Nation

HRX - Yohimbine and Insulin?

I use to read that you maximise yohimbe by taking it on a empty stomach and that high insulin levels decrease its effectiveness.

I train at 6am and take Surge immediately pre-workout. I initially take HRX at about 5am45-60 minutes before my Surge. Am I maximising the effectiveness of HRX or am I in any way reducing its effects?
Thanks in advance

Ive always taken HRX before workouts and really thought it improved my workouts from a sweat/working hard standpoint.