im on ECA right now (actually not aspirin) and I love it. Jacked was good but it was hard to judge the right amount. Too little and I wouldnt feel it, too much and I would be irritable after and feel like I was on crack.
Ephedrine is a cleaner energy to me and with caffeine I think it really helps fat loss
I'd be wary of mixing any extra stimulants with ephedrine. The 1,3 dimethylamylamine in Jack3d (see the Jack3d ingredients) is like a weak amphetamine, and who knows what mixing it with ephedrine will do. Probably not a good idea, just in case.
I liked SEN Metabolic fuel for ECAY stack, it was Ephedra, Caffiene, low dose Asprin, and Yohimbe or whatever...
But I am getting great results off the LIPOSTIM/LIPOFLAME Combo with no CRASH like I got on the ECA stacks...