There's a technique, 27ga needle is really small so it will take a long time to inject. I use 21-23ga. Still takes a little bit to infiltrate, but is decently quick. I'm assuming you have the basic safety/cleanliness prep down so I won't discuss. The muscle needs to be completely relaxed. If you bear down it is going to hurt. You want your knee slightly bent. Your leg is not fully extended. That contracts the quad. Also the knee is not fully bent, same thing, the muscle is stretched out and it is hard to pierce and it will hurt. A nice middle of the road bend at the knee. Next you want to hold the vastus lateralis up, I use my left hand since I am right hand dominate (the syringe is in my right hand). From the lateral side of the thigh my forefingers hold the muscle up and then I use the thumb to pull the skin taught over the muscle. You can feel how relaxed or contracted your muscle is now. Try and relax again. You're aiming for the taught skin half way between your thumb and your forefinger. When you're ready to inject, it is a 90 degree angle to the skin surface, straight in. The motion is a quick "dart-like" flick of the wrist, don't go slow, that is painful. Take 2-3 deep breaths in, on the last breath, blow out at a medium pace and dart your wrist into the muscle with a smooth action, don't jab! It is all in the wrist and fingers, not your arm moving, the needle is sharp and will go in. It is a bit of mind over matter, it gets easier the more your do it. I almost passed out the first few times. Don't hold your breath. Don't push the plunger too hard, the rate of infiltration affects what you feel. I would give it about a good count to 5 to inject about 1 ml. (I suspect you could be feeling pain from injecting too fast with a small gauge needle, you know when you have a hose and the water is flowing out and then you put your thumb over the end to make it shoot out far and hard? same thing here, the smaller needle is shooting out the fluid at really high pressure, and double so because you're gonna be tempted to push hard because you want the whole damn thing to be over...) the larger bore needle (21-23) will accomplish the infiltration quickly enough and you won't need to push so hard to get the viscous fluid out. Well I hope this helps. Hard to put into words what a good video would show you. But yes please follow all the safety guidelines.