If you are doing long acting test, the half life is going to be roughly 7-11 days, depending on ester and how you metabolize it. It's best to split your injects up, as you have, into 2x a wk, just because it keeps your hormone levels more stable. It isn't necessary though. You can take your weekly dose all at once and you'll still be fine. Then start back up on 2x wk, once you get home.