I agree but not completely. I've been shooting cut on contact BH's for 24 years, here's my experience with them. It really depends on the angle, toughness and design of your cut on contact BH on whether your going to be able to penetrate bone decent or not. Not Included In this discussion Is the knuckle In the shoulder, that's Impossible to penetrate! My old 125 grain 2 blade bear razors with bleeders did pretty good on hitting ribs square entering and exiting and on one occasion I hit the off side leg and busted It In 2 pieces. I then switched up BH's being bear changed there design on the points of the BH's, they rounded/squared It some and I didn't care for It being I figured It would rob me of penetration. I switched up to a 125 grain 2 blade with bleeders Satellite Titan. It didn't take long to figure out that thing was junk, the ferrul would bend when hitting good bone or squaring ribs once In a while so I only used them for 3 years until they were all used up (didn't take long being they would bend when target practicing with them). From them I went to a 3 blade head and It's the same BH I'm using yet today. In my opinion It's the best piece of equipment on my bow. I shoot a 125 grain 3 blade Magnus Snuffer. It's tough, the angles are great, and the tip Is crazy sharp (cut on contact). I've hit 2 shoulder blades with It, didn't stop them a bit. Many many times I've squared both ribs solid In the middle of them and blew right on through the animal. This Is a 3 blade BH, that's saying something If there doing what I just said. My sister In law pulls 45lbs back with her compound, she shoots this same exact BH and had her's do a complete pass through on her one and only deer. Another friend of mine's g/f had the same very thing happen this year on a doe. Same BH set up, even less pounds (38lbs) and she also blew on through with a 3 blade Snuffer. Like I said earlier, It's all about the angle, toughness and design of your cut on contact BH. A good design will get It done hands down (even with bone).