OP - Sust sucks for TRT due to the short esters. What you want is stable blood levels and the easiest way to get them is with a longer ester such as Test C or E injected at least once per week. Using a longer ester such as Test E or C, it will take about 4 weeks to get your levels up, but they will remain stable if you stick to a strict injection schedule. Since it sounds like you have not seen a doctor, here are some hints:
1) Most guys think more is better. It's not. If you are on TRT, you are looking for your optimal test level, not the highest you can get. I started at 200mg/wk and could not get stable levels - I couldn't get an AI dialed in and was worse off then before I started. My Doctor is fine with me changing things up to find out what works, so I tried raising and lowering the dose and injecting 2x/wk. What I eventually found was that at 200mg 1x/wk I had a total T level over 1500 and felt like crap. I tried raising the dose and it didn't help - in fact, I had more side effects from the higher E2 and I couldn't seem to get the AI dialed in there either. The dose I am on now is 60mg 2x/wk and my levels are still over 1000. The difference is that I no longer need much of an AI and I feel great. Plus, my Free T levels, which mean a lot more than Total T are now 39.75 ng/dl on a range of 5.9-21.0
2) Don't get hung up on numbers. Sure a total T level of 1000 sounds cool, but if you feel better at 600, there is nothing wrong with that. You are going to have to experiment to find out what works for you. It's counterintuitive but lower might be better.
3) If you are self administering, remember one thing - blood work, blood work and more blood work. You can inject a gram a week and if your other blood levels are out of whack, you are wasting your time and money.
MKpaint - I just got some Formeron myself and am anxious to see how it works. Since I don't need much of an AI Anyway, I'm trying 1 pump 2x/wk to start, same day as I inject.