In the past, I tried to use the least amount of solvents possible when making homebrews. However, I've decided recently to use at least 10% benzyl benzoate (BB) in everything, even if I can get it into solution with much less. Its just a good preventative measure against having sore lumps where I shoot, and it doesn't cost much at all.

About 8 days ago I shot some test enanthate and deca into my right glute. It is still swollen and sore. I had drawn up another shot of the same thing at the same time and was saving it. Before I shot it I drew .1 cc of extra BB into the pin, shook it up, and warmed it a bit before I shot it into the other cheek. Minimal swelling and soreness.

If you don't know, BB helps keep hormones from cystallizing in your body. When that happens, the crystals cause pain.

i use 20% bb on all my conversions. it also helps to make it thinner.