Where on your thigh are you injecting?

I bleed when I inject too far back, or too far over from my thigh.

It actually happens to me more often now that I inject manually, probably because I'm actually trying to spread out the areas that are getting injected. Looking for areas that I havent already injected a few hundred times.

Also, how deep do you have the injector set for? Maybe you're injecting too deeply and hitting veins?