its easy to miss the quad muscle if you plunge straight down and not at an angle going into the muscle..
Easy to miss quad? What angle are you talking about? I pin on the outside of my thigh, so syringe is nearly parallel to the floor. I hit the spot here: QUADRICEPS INTRAMUSCULAR INJECTION. INJECTING THE QUADS, How To Do Injections, Injection Instructions, Injection Methods, Injection Guide, Injection Photos, Injection Pictures