haha I did alot of research before using that combo, i started like 20mcg,40,80,120,120....last 5 days of the 2 weeks i was doing 160mcg. Day 1-3 i was just shaking alot and my heard beat was up near 90bpm where normally its 65bpm so i was checking it like every 5 minutes. then towards day 5 i was getting huge cramps and i started takign 5g of taurine and the cramps went away. Then after day 5 my bpm levels out, no more shakes, no headaches, i couldnt even tell i was on clen oxy and pre. I also went from 180 to 172. and i can see a difference. So it worked out good!