I broke open the caps (which were tightly packed!) because I was told that the powder was actually flavored...very similar to the Formula-X taste! Same aftertaste as I noticed in the stim-free version; a taste that wasn't in the Formula-X.
Can't say I noticed any kind of enhanced stim sensation, although I was sweating profusely during my shoulder workout. I kept the rest times shorter and did some heavy volume, but that could have been as much of a contributing factor to the sweating as anything in the product formula. I was able to go for a solid 45 minutes though, which is a bit unusual for me on shoulder days, even on shorter rest periods!
Can't say I noticed any kind of enhanced stim sensation, although I was sweating profusely during my shoulder workout. I kept the rest times shorter and did some heavy volume, but that could have been as much of a contributing factor to the sweating as anything in the product formula. I was able to go for a solid 45 minutes though, which is a bit unusual for me on shoulder days, even on shorter rest periods!