I found that 5mg of AndroGel was just about useless for me, it just shut down my natural production with very little increase in Total T (221 before TRT 299 after). I also felt the boost in the beginning and then it quickly tapered off. I too believe there is a nice jump in the beginning because you natural production isn't shut down yet, so you have elevated levels for a short period of time. I am now using 10 mg, it is working great, I have even gone up to 15mg for 3 weeks, just to get the blood work done. I was still with in the normal range for Total T(745 - 261-827) and Estradiol(30 - <52 from memory). My libido and energy levels went up for a little when my physician increased my dose to 10mg, and again when I did the short 15mg dose. None of the increases in AndroGel gave me the sex drive as I got/get when I add Nolvadex at 10-20mg a day. SWALE, is there any sense to that, why does the Nolvadex seem to have a stronger effect on my libido then Test? Maybe it is the combined effect of both meds or an increase in LH from the Nolvadex. Then again, I don't stay on the Nolv. very long, so it may be having the same temporary effect as the AndroGel, I am just not on the Nolv. long enough for me to notice a decilne. I wonder if I should drop back down to 5mgs and add HCG, like pmpamer18 is talking about.