I can kind of agree with what you are saying on the sprint and the jog. ECA is more of a crash for me and i have more difficulty sleeping at night but clen has the largest effect on my workouts. Clen gives me the worst muscles cramps no matter what i take or how much water i drink. Its frustrating not being able to finish sers because you start cramping. It also makes me much more shaky which effects everyday tasks for me.
But like you said to each their own. Just use what works best for you.





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