Last year I shot 3 deer with the Rage 2 blades. 2 of them were quartering away hard and I hit the thin par of the shoulder blade on the far side. Both arrows were complete passthroughs. With that said, I don't think any head is going to consistently pass through the thick ridge on the shoulder blade. Your best bet for that is going to be a cut on contact 2 blade head like the stinger, certainly not a large diameter mechanical.