Have you ever seen your blood test after one shot? Second day after shot its 3 times higher than my average! Do you ever read about non-genomic action on CNS? Genomic action take 72hours to start and many days to bring noticable effects this is IMO your "kick in", maximum effect in gym (this take 3-4wks). ...
But effect on HR, mood and libido is mediated directly by non-genomic action and this you can fell right after exogenous test reach your sensitive tissues. And as I type above its in hours. If you think somethink else you are wrong.