I am using a 1" syringe for thigh, but 1 out of 3 times i hit a nerve or something so i have to change location. This have been a problem for a while, i've seen a lot of instructional movies and other to see what i'm doing wrong, but it seems that anywhere i shoot there is still a chance for hitting a nerve. This is just happening when the syringe is injected all the way, so could it be possible that i can/should use a shorter syringe? Or can my injection motion be better? I try to do it in one motion pretty fast, but i tend to do it a little slow, it takes about 1,5 seconds.