ok so i took best and tren-tfo for 4 weeks, and am running a pct for 4 weeks. i am finishing week 2 in the pct right now. my question is how long should i wait til i start up again. i am really looking into your super stack or your shredder stack. also, im wondering how long can these products sit before they go bad, cause if i have to wait like 5 or 6 months before i can run anything, i was going to go ahead and buy them, just in case you happen to hit a hsortage or anyhting. thanks a ton man!!!!! you freakin the best!!!