for a true newbie, run it solo. dont get complicated with stacking. say your stacking two ph's and your having negative sides, you wont know which ph they are coming from.
A bottle of HDrol is not equivalent to a 10# gain in LBM - or even a 6# gain: muscle gains depend on proper nutrition, proper lifting, and sufficient sleep.
How old are you?
im 25 and what was the point of the video?
whats the best thing to stack hdrol with for mass for a true newbie.. the goal is 10pd