What are people thoughts on using DMAA, AMP citrate, Caffeine, and other stimulants when training?
I train 4x a week high volume and find that I do not enjoy training unless on a pre-wo. This is the main reason I only train 4x a week as I use no type of stimulants the other 3.
Is 3 days stim free a good way to keep tolerance at a good level?
** At the moment I only use caffeine, Spike and the occasional monster but, am looking to try others as a why to cycle them.