What about the test level? Is 500 to let's say 1000 a big difference 
So I mentioned the protocol I was on, and how it's progressed to where I'm at now in the Italian Lifter's over 40 thread. Quick recap (all Test E and I'm just going off memory) 200mg/wkly = 987, felt decent. 400mg/bi-weekly = 646, mood all over the place and felt like shit for all but 3-5 days out of 14. Current as of 12-31-18 300mg/wkly = 1348, cha-muthafuckin-ching! Have several health issues I've been dealing with for 2 decades that are not juice related in any way, but I feel the best I've felt in 10+ years and that has been getting more improved since feb.
I want to post my bloodwork, but I don't know how. I keep everything in spreadsheets, and use "economic" formula for percent change in value. My dr. was alarmed by my test level, and told me when we switched to 300 he was comfortable at 1200 total test. When his nurse called to set me up to come in and go over she said he was not happy about my RBC either. I put the spreadsheet together, and went in ready to fight. I said I know you want to talk about my test levels, but I want you to look at these things first because I'm even in shock. ALL of my cholesterol levels were high, high risk, or very high risk (except HDL is low)......they always have been on or off.
Between my last bloodwork in december at 400/bi-weekly and bloodwork two weeks ago at 300/wkly ELEVEN things got better. Every cholesterol and my tri's are all normal (except HDL went from 38 to 36....I attribute that to adding in Anastrozole, and he agreed. My RBC that he was concerned about actually went down .5. Here's the kicker.....Not only did I not train from 2-9 through 3-9 (except for 2x weights and 2x cardio), from the super bowl til then I ate like complete fucking shit. I said "this is crazy, it goes against everything even I believed from my reading...can you please explain this?" He said, "I have no clue. That makes no sense at all, and goes against everything I was taught in med school about steroids" (He's a gp, not an endo or trt specialist) He then said, "so I guess you just want to stay where you're at?" I smiled, and said "yes please"

So the short answer to your question is that research shows that no real trt benefits begin until at least 800ngs/dl is reached. What my results show FOR ME, is that there is an insane difference between 987 and 1348.....and I got healthier.
Question to all.....does anyone know a reputable national chain/research company that pays for blood donations? If I'm going to go get vampired every 3 months, I might as well get a free dinner or two out of it?