Dude, just stick with Jack3d in my humblest of opinions. You should only need 1-1.5 scoops and thats less than 2gs of creatine mono. It's the 5-20gs people take daily that needs to be cycled. I mean there's creatine in Steak, but we don't cycle that do we? I do take 1 day off per week on jack3d just so it doesn't lose it's flare, but other than that, my kidney function is perfect according to blood tests taken 2 weeks ago and I've been on jack3d for more than 3 months.