what would be more effective

[xpunksurferx]

if I only

[respek]

I would run 500 mg for 10 wks. Good luck.

[legobricks]

Id opt for12 weeks at 400mg a week. Youll find youll run short of 10 weeks on 2 vials. You loose a bit in the syringe after each injection. So go for 400mg. If your diet is good, youll get good gains off of 400mg per week.

[tboney]

I would run it for the twelve weeks. What are you looking to accomplish? Age? stats?

[sassbs11]

defo 12 weeks

[inky-e]

^^ what Lego said

[FireGuy]

First time, 400 a week is more than adequate. Go for the longer duration.

[ecto9]

I'm planning on 12wks as well. 400mg/wk. I'm a first timer. That way you have more leway to go higher on your next cycle. That's my plan of attack anyway...

[LATS60]

Damn, yep what everone else said 12wks@ 400mg.
But saying that you could shoot 250mg E4D or E5D.