I'm planning on doing bi and tri injections in my upcoming cycle. I'll be shooting 2.5 cc's twice a week.
For those of you that do bi injections, do you shoot both biceps at the same time, or do you rotate ? Also if you shoot both at the same time, is there a greater risk of infection if you don't change the pin?
For those of you that do bi injections, do you shoot both biceps at the same time, or do you rotate ? Also if you shoot both at the same time, is there a greater risk of infection if you don't change the pin?

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