The point I am trying to make is, for these purposes, all we need is a general slope of serum T levels. It will rise from shot day, to a peak 48-72 hours after, then begin to drop. The only actual level you will know is whichever day(s) of the week you may have labs drawn. This is not for the purpose of attempting to precisely predict any level on a particular day. it is, instead, just to GENERALLY allow you to see your week at a glance. Just doing that much can add a lot of insight into your hormonal landscape. especially when you compare how you feel across the week. Disconnect from subserviance to serum levels (we are talking about true TRT, which is based upon normal range, of course). Think instead in terms of "at this dosing, on these days, this is how I feel".