Stacking 1-ad with 4-ad seems to be a very popular stack. Then doing postcycle with 6-oxo. I know that ergopharm makes 1-ad and 6-oxo, but what would a good 4-ad product be? I've done some research and the only real solid 4-ad ph I could find was Molecular Nutrition's 4-AD Ethergels. Are these any good? Also, if anyone has had good/bad expieriences with this particular stack then I would really like to hear them.