also another benefit of having it sit in the syringe is if the ba content is to high it will evaporate/disapate some and the shots are alot less painful, i know this from personal experienc, it took a couple times for me to figure out why sometimes they would hurt and others they wouldnt when i had something that stung, i brought this up years ago on here, maybe u can find the thread if interested in searching for it, but some guys said they would pull out their tren and the leave it on the counter and take a shower and that the shot was always less painful from sitting in the bathroom while showering,