I'm no expert, but I did not.
I started with 4iu daily and within the second week, me wrists, ankles, feet, and fingers started to bloat. I also got some horrible CTS sides. I had a few options, lower my dose, cut it all together, or punch through the sides. Mind you, at the time I was on a cycle when I first started (I use the shit year round now) and like Heavy said, it's best to use it when "on" because of the synergy of test and GH together. Both cause hyperplasia.
I later saw my sides start to go away, however....I did go up one full shoe size and my wrists got thicker. I had to go and drop a couple hundred bucks on some more links for my dress watch. I also had to get a few new pairs of shoes. About 2 months in, I started to notice some shredding of some fat around my abs, my skin also started to look a lot cleaner all over my body. I did not notice any gains in strength...I continued to use it after my cycle was complete. About 4 months in at 4iu daily, I noticed some more hardening and a little more vascularity....and I felt like a god. I had more energy, I felt more active, basically....an overall good sense of well being.
At 6 months in, I changed protocols all together and bumped my dose up to 10iu ED during a rather heavy bulk program. I used this dose in conjunction with AAS and slin. I put on a solid 23lbs. of LMB. For me, that's a shit load of LMB, keeping in the single digit bf%. I don't think I can lose those gains, I was around 220lbs. at the time, and ended up just under 250lbs. and had a bf% of 7.5. I later tossed IGF & T3 into the mix, and I slowly began to add more LBM. Got harder and much more defined.
I tried several different protocols, but I have never used GH alone for long periods of time....just time in between cycles. But again, I was using slin as well. You can start using HGH now, and by the time you are ready for your next cycle....the shit will be working well in your body. With the addition of test, you will see much more drastic changes, and ultimately....more LBM.
In short, 4iu will shed some fat in the long run...but don't expect drastic changes at that dose. If you are looking to add more mass like you said, you really have to up the dose a bit. If you were older (I think you said you were around 32-33?) 4iu would be more effective. I'm 33 and I needed at least 8iu to show some nice changes....the older you are, the less you will need. IMHO. I'm sure others will have different experiences, these are just some of mine. Good luck bro.
/V
