Never did i have to figure on the dime
first time i did test i just ordered like u stated an extra vial to give me more then i needed cause like u said better to be safe then sorry!
But i now know that running 400mg of test c is gonna give me a 12 week run, ordering 2 vials!
just have to figure out the math abit
so u go with Test C 250mg/1ml and u run 500mg/week, 2ml's a week x 5= 10ml= 5 weeks
In return 2 vials at 500mg a week is only giving u a 10 week run ( IF lucky and no waste) lol
so u can easily get 12 weeks from running 400mg of test c a week
As for me i always run atleast 12 weeks and if running more weeks like 15 obviously order up another vile

and yes he didnt ask that question about an Aromatase inhibitor (AI) so i figured i wouldnt comment on that, but would be the smartest move to run an Aromatase inhibitor (AI) during his cycle