I started the 5x5 routine about 3 months ago and let me tell ya.... I've put on some decent LBM and also, all my lifts went up as well.... I did do a ergomax cycle a few weeks ago and I think by doing the ergo cycle and adding the 5x5 routine is how I gained 12 lbs and kept it all....PCT was 4 weeks with perfect cycle, rebound xt and retain....Before doing the cycle, I started the routine about a month and a half before and I could already tell something was going on. I do every exercise 5x5 (heavy), with a 1 set 8 rep warm up..... I wonder how long one can do this type of routine before mixing it up again.