Well If you have a friend who can help you out with it, I find Lat injections are by far the least painfull site to inject. I no longer have the mobility to do it on my own. Also, for me I find the rate that I inject the fluid seems to reduce pip greatly. I tend to go 10-15 seconds for every ten 1/10 of a cc. So 100 seconds for a cc. Some people may seem that is excessively slow, but I've been able to see good results with it, can feel very little if any scarring and never missed a workout as a result. Deep tissue massages can help to elevate some of the pain and make things a little more bearable. Short of that unfortunately this is a bit of the price you pay for running as aggressive of a first cycle as you are. This is why a lot of people don't finnish. If you are still crippled up in two weeks and the pain is unbearable, I would suggest possibly suspect gear. High quality gear has a tendency to cause less pip with the same injection process.