I think it also depends on the PH you take. I am currently running finigenx, tst and a little left over gaspari pro turinabol (probably underdosed p-25) and I have no lethargy at all. I feel energetic and my libidio is great! I have ran many PH's in the past and many such as 1-test, superdrol, prostanny etc have gave me lethargy. I believe that the closer the PH is related to test the less lethargy you will feel. My current cycle reminds me of the effects I use to get from 4ad-based cycles.
The tst and pro-turinabol seem to be giving me my test. I just hope my last 2 weeks are as good as the first two!