Like sanchezgreg18 said, 1-T will put your homone levels over your natural limits because you are taking some exogenous hormone. The usage of DTH is pointless, it is like making a cycle with any other steroid and put some ZMA or tribulus on it, the effect of the natty testosterone booster, will be insignificant compared to the supraphysiological levels that 1-T will give you. Now, if you are talking about the Diesel Test Pro-cycle that the company has released recently, the effects of the DHEA and Pregnenolone that it has might have some influence on your homonal levels, but I have no clue how does DHEA or Pregnenolone interact with 1-T.