Quads are by far my favorite. Lots of meat to work with. One of the largest, if not the largest, muscle group to work with. Everyone is different. That is the spice of life.
One method to use for finding your site to inject is lift your leg up while standing or sitting and look for the Rectus Femoris head to naturally protrude. Once seated and relaxed with your leg extended out this is the area that should be your target. I hope this helps.
One method to use for finding your site to inject is lift your leg up while standing or sitting and look for the Rectus Femoris head to naturally protrude. Once seated and relaxed with your leg extended out this is the area that should be your target. I hope this helps.

