I am going to be running a cycle of Test E at 500mg per week starting in about a month (my first by the way). Most of the info and members on here seem to favor a split dose which would be 250mg every 3.5 days with this type of test. Test E has a half-life of 10.5 days, and I recently came across a couple of pieces of info that favor injecting at half of the given drugs half-life in order to obtain the most stable blood levels which we all know is important to keep sides down. This seems to make sense to me from a mathematical perspective (I have actually played with the numbers a bit). Can anyone explain to me the logic behind the 3.5 day injection preference with Test E?