I count Ricardo as a friend of mine and we have traded arrows, heads and information. He does have a lot of experience and I agree in principle with most of what he says. I do not agree about using the wider head on buffalo though. I did use a wide head, a Magnus 160 on the first buffalo I shot and it did not penetrate the ribs. I learned a lot from that expensive mistake. I don't think a buffalo with a slightly bigger hole though the ribs is going to expire any faster. I shot one with a 160 Grizzly across the top of the heart and in went down in 17 paces. On a buffalo you are never going to get a passthrough, so you need to get all the penetration you can, it ain't the only thing, but if you don't get enough penetration then nothing else is going to matter. Where Ricardo and I disagree, is that he thinks the sharper angle of the blades is going to cut more than the longer lower angle of a 3-1 head. He has a point, but the 3-1 head also has a longer cutting edge and penetrates easier. AS long as they are sharpened properly I will have to go with the 3-1 head on animals like buffalo. Rick