Although it is it at the upper end of the range, your free T is within normal reference range for this assay. For those taking exogenous testosterone that is atypical, if not outright impossible on supraphysiologic doses of T. I am on TRT at 125mg/wk and my free T is outside normal limits with total T safely below higher limit threshold per the assay used. Unless the lab is botched or, as mentioned, you have a very infrequent injection routine with bloodwork right before next shot, your gear is bunk. Still, it would seem with high levels of total T your free T should be well above; since, as I said, normal total T exogenously will produce high free T values.
Would be interesting to get some pharm grade T and see what happens and/or try a different lab.
What other drugs are you taking? IGF? hGH? an AI?