I was just visiting this Spot injection site and noticed that the big guy took all his injection in what appears to be total flexion of each site injection.. So would I get better results by flexing during injection.. And this asperation stuff.. haha I've not recall ever doing it.. i heard i was only suppose to do that during Quad injections.. so i slightly pull back on the syringe as if i were gonna draw out some muscle and if i see air bubbles im good to inject.. does that mean i have air in my muscles?.. Sorry everybody ya'll see that Newbie under my name.. well thats what i am.. only took like 6 shots so far 4 in delts and 2 in biceps.. somebody give me some good ol' Expert advice please