I'm starting a 12 week cycle of test 400 (400mg/ml) mixing with NPP (100mg/ml). I haven't done a cycle of test in over 20 years but I've cycled on and off of pro hormones. I'm 51, 190lb, 5'6, 12% bf and in the best shape I've been in my life but lower T levels are hindering where I want to be. I...