Physics Based Hits (Shoulder goes down on clavicle hit? instead of back.)

Greetings,
I am using a set simulate physics below type system for partial ragdolls for fractions of a second to make the hits more reactive and less mechanical. It all works great. But on the ue4 mannequin I had to add my own clavicle bodies, and I am thinking I might have added it wrong. When I hit the clavicle you expect it to go backwards, the direction of the force. (the force direction doesnt seem to be the problem works perfect on all other bodies) but instead of it going backwards on a hit, it goes downward. Is there something in the way I add them? (just keeping defaults and changing size and rotation afterwards, though i tried without rotating thinking that might be it, but still hits move it downward not backward) or possibly something in the constraint mode I can do to change it?

Thanks for any advice ahead of time.

Apparently I was thinking about wrongly. Welding the appropriate bodies together and removing all the damping I put on it straightened right out. Seems welds are more functional than linear and angular damping when using set bodies below simulate and applying an impulse.