i want to do some spot inj in my biceps i went to spot injections.com for pictures and i can feel where the two heads seperate but their pictures on the outer head are kind of confusing in the picture it looks like it is on the inside of the main vein but i read in a thread and it stated to shoot on the outside of the main vein for the outer head i'm kind of confused, was hoping you guys might be able to answer this correctly