Ok so i am a newbie to drawing gear, I believe i keep wasting a lil too much gear when i am trying to squeeze out the couple of bubbles that come in. I squeeze out all the bubbles and a few drops come out, but then it looks like to me like there is still one little bubble left right before the entrance of the needle. I couldnt get rid of this? Can someone give me some advice on drawing and how to get it perfect? also have one more question, Can i add test and deca in the same shot?.. Thanks guys.