I'm just a new hunter, and I have taken some unethical shots, which you can read about in the thread "First deer! Spiked buck!" but even though I hit the deer in the very front of the shoulder blade, my Tekan G5 100 grain expandable broadhead richocheted off of it and still drove all the way through the deer and went through both lungs on the way.
That might be contributed more to the bow than the broadhead, but I like the ones I use. That's biased as all get out, but I hope it might've helped.