I don't know how long it takes to kick in by itself , this is my first cycle running it with test and i will say that my drive is higher now than it ever has been duing a cycle ,
I'm running 75mg/ed along with .25mg/ed arimidex with 800mg test/wk
generaly when i run test my drive will be high for the first 8 weeks then slowly drop to a normal level at about 12-16 weeks and rightnow I'd fuck a cinderblock if i got the change , i think my drive has gotten higher since i upped the dose from 50mg/ed a couple weeks ago