I read a thread that dave palumbo says over 1 g of test per week will actually make one fertile again instead of making you infertile like the "lower" dosages.

the theory is that the steroli cells in the testicles have to bath in testosterone to produce fertile sperm , when you inject for example 250 mg per week , and your HPTA shuts down , by the time the test get in your blood its very diluted that the concentrations passing through the testicles are very negligible , but when you inject high dosages , the amount increase and spermatogenesis is once again triggered , which is one reason that explains the pregnancy while on especially during heavy duty cycles.

i for one when i shot a gram of test i actually noticed a LOT more sperm during ejaculation . but when i use low dosages , the actual quantity of the sperm decrease significantly .

Any thoughts and experiences ??? this is really interesting .