I seem only to get bleeders on my thighs if I inject too close to my knee or too far down my leg. I used to get bruises when I had the autoinject too shallow or too deep. I'm helped a little that I have some big freckles by the perfect areas to shoot the copax.
For the hips, I generally make my hand into a fist. I place the heel of my hand on the hip bone, and make sure that where I inject is close to where the knuckles of my fingers land within the injection site they give you for it. If I don't do that, I always get a bleeder there.
I haven't had problems with the other sites yet. Hope SS can give you some more ideas.