It all depends what all compounds you are going to be running. Seems like you've got the right idea of blood tests that need to be checked. SHBG is a protein that binds onto your sex hormones. If your shbg is high, it binds onto those hormones and it doesn't allow the body to be use them for anything else. When it is low it frees up your sex hormones and your body can use them in a different way because they are not binded by SHBG. Prolactin plays a role in gynecomastia. If this is high you can get permanent breast tissue formation, and get lactating nipples. Especially when running compounds that are 19 nor. Other compounds do this as well but you need to research each compound individually before hopping on it. Essentially you want to do a blood test before a cycle, 6 weeks into a cycle, and at the end of the cycle, and before you hop on again. Time on = time off cycle. PCT while off. If you blast and cruise, before you blast, 6 weeks into blast, at end of blast, and before you hop on blast again. No PCT needed. You will need an AI to manage your e2 if it gets too high. There are lots a variables that go on hand what certain blood test are needed needed.