I recently switched the syringe i was using to inject testosterone cypionate shallow IM. I bought insulin needles from easy touch (27G 1/2 inch). A lot of times i get a tiny bubble that no matter what i do i cannot push out the syringe. Anyone else has this issue? When i was using BD insulin syringes with detachable needles i never had this problem. I was always able to push any air bubbles out.