I've taken C4, 1.M.R, Ignition, VPX Friction and I'm currently on Platinum Pre.
Friction is my fav. I'm on the Platinum because I'm cycling off creatine right now...
C4 is ok, but I build up a tolerance to it very, very quickly and end up taking 2 scoops.
1.M.R. works but tastes like vomit.
Tried Jack3d and hated it.. made me jittery...
Back when I was big into pre, I would get up to 4 scoops. no bueno.
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