6 may be alittle too costly but if u can affors it go for it, i would recommend taking 2-4ius every day for a good amount of time, even continuing after the cycle to help maintain and use it as a bridge.
muscle
From what I understand, only taking 2 may have the same effect on your body that taking 50mg's of test a week has,, That is your body already creates that much GH and may stop producing it's own and you're back to square on.. That's why I said you can get away with less when you are older, as you produce less when you are older..