I'll go ahead and say it first - add some test!!!
having said that... if those were my ONLY 2 choices and money was not a problem nor was a good source (for primo) I'd probley go with the primo but might extend the cycle to 10wks. If you were going with eq I'd say 600mg/wk for 10-12wks.
all depending on your cycle history, goals, etc etc etc.