So have you started this experiment of 20mg a day? Let us know what your results are. I never tried it but always read that orals alone were not real great. Most suggest using testosterone as a base then adding in something like this.
Its a good way to get your feet wet but it seems like many start off this way cause they're afraid of needles. The sooner they get over that fear the better. The thing with testosterone is that it's natural....it's what your body already makes and you can run that forever in low-moderate doses. But take anything else for too long without testosterone you'll likely start feeling like crap.