At 5'10 180lbs you probably have some natural gains left in the tank before you jump on. Your not at a weight that I'd say your wasting your time, but I'd say you'd get more out of it if you eat like a beast and put on another 10-15lbs over the next year before jumping on the gear train. What were your test levels at on the pre-cycle bloods? At 28 your not too young by any means, but if you have another year or two of natural gains left in you what's the rush? I get it, I really do. I'm not the biggest guy either, and I messed with prohormones like an idiot when I was your age and weighed like 160. I just went back to what I had before I started eventually (then again it's because i prefer my look under 200lbs).

Just throwing it out there. You'll get more out of it if you wait.

That being said, if you do jump on anyway. Mid-cycle bloods are absolutely necessary to make sure your ai dosage is where it should be. Hell, I tried to go every 4 weeks. It looks like you're doing your research which is good. Just make sure you've done enough before you start.

That's exactly the test (mid-cycle) that's used to adjust the AI. Your pre-cycle blood work really doesn't tell us shit in that regard. Other than, what your e2 is, and even then that is just one result. An average would be a nice number to have.