Differences between T-rex and ECA stack

[KillahBee]

Just wondering what others think about this- in terms of ingredients but also in terms of total effect on you. Personally, I just started T-rex and it seems to give me more thermal components than ECA, but ECA gives me more energy and more appetite supression.

 

[MrMakaveli]

Energy - E.
App Supression - T
Fat-Burning - T
Mental Focus - T