Yeah. I haven't even been working out very hard with it. I just wanted to ease my body into it and see what the doses felt like.
40mg-100mg - I just noticed a small increase in energy (similar to an ongoing caffeine high)
100mg-160mg - I don't know if you have ever taken ephedrine, but it feels a lot like that. Sweating, shakes. Tons of energy.
160mg-200mg (1mL) - Just coming up on this now, see how it goes.