Any site's need be avoided?

[LATS60]

I have been just rotating my glutes,delts, & quads and tonight just finished first pectoral injection which went very smoothly and was planning to break in more sites if not to difficult.Of these sites (lat,trap,bicep,tricep,calf) is any i need to avoid due to more difficult hitting the muscle or little avoidance of pain?

This isn't one to avoid, but it is the best to use, ventro gluteal, gives you another 2 pain free sites that can easily handle 3ml.