i havent even started my cycle and i am already gathering my next cycle for next year,do to slow shipping.i have learned so mush on this forum other.i would like to no if there are any advantages to using a mixture of test rather than a pure one.i already like the idea of pinning every three days pure or mixed,but using four in one must have some type of advantage?i have even seen a 450 mix of five different test,i was planning on running a test with some trenbalone e,hoping for some advice.