The reason i asked the question that I did is that when people are making injectables, they often go for too high of a concentration -- often by using too much BA or BB. I think part of the pain problem with injecting 1 test is that these high concentration injectables are crashing out of solution when injected -- when it crashes you get crystals of 1-test preceipitating out --- major irritation. 1-test is itself supposed to be an irritant so i don't think one would be able to get rid of the pain altogether, but by using a lower concentration and trying to keep it from crashing out, the pain might be reducd -- just a theory.