High dose test can be tricky. Theres a reason that it’s dosed lower when produced by pharmaceutical companies. 1ml of oil can only hold so much hormone. We do have the technology to dissolve hormone at higher mg’s but it can be a much more painful shot. I suggest that people stick with standard 250 if they are just doing a couple shots a week of test only. One thing you can try is mixing this with another less painful compound like EQ or deca. Basically thin it out. Or you can get sterile oil and mix this to cut it.