TFOX, Just for the record I am shooting at 280 fet per second with my two bladed cut on inpact. I have to so my KE will be up. I have never had a problem with tuning these heads. I am consistant with these and can put them in there with my broadheads up to 60 yds. I had no reason to practice beyond that. I shoot in the wind most of the time as the wind is always blowing in the desert. I spend ALOT of time tuning my bow and it is an involved process. I start out with paper tuning and then finish it up with bare shaft tuning. At the present I have got my bare shafts to hit in the same spot as my fletched arrows with field points on, at 30 yrds. My FOC is at its optimum to prevent the head of the arrow from diving or lifting, two of the contributing factors to wind planing. As I said before, the width is 1 in. Which is 1/8 above the size that you said will not shoot as accurate. I am shooting a 423 grn arrow at 66#. I have done my homework and know that when I pick a spot on the animal, my fixed blade WILL be there. I have also done tests on the muzzy phantoms, another cut on impact two blade. The flight characteristis are the same as the modocs in which I was shooting. I will be going to these because of the fact that they are made with tighter tolerances as far as grn weight and also because of the Wider cutting blade. Again. These flew just the same. So to wrap it up. I have found that it is possible to obtain hairsplitting accuracy with a fixed blade broadhead along with undeniable penetration through a properly tuned bow. Aren't those the two things that all archers look for in broadhead choice? If I can get that kind of accuracy at 60 yrds. I sould have no problem inside my hunting max. range of 30 yrds. Most of my shots are under 15. I am not willing to make ANY sacrafices. I am not downing the use of mechanicals on deer. However I will dispute the fact that fixed blades can't be shot with hairsplitting accuracy. Things that will effect the flight of a fixed blade are, imroperly tuned bow, incorrect arrow spine, poor form, brace height below the shooters capability, poor fletching clearance, excitement, obstacles, and yes wind. If the wind is strong enough to mess up broadhead flight then it is probably blowing too hard to hold steady. If you look at all these factors,they can be applied to the mechancal tipped arrows also. Other than the wind, I can control all of the above. In the wind mechanicals have there downfall also, If the arrow is not going in straight because of the wind. The weight is not completely behind the arrow and losing the much needed KE to penetrate. Most people I have seen lighten their arrows to boost up the speeds to use the mech. heads. Lighter arrows are effected more by the wind. This is what I have found. People have been posting about situations an not showing us what situations. Proper tuning and knowing your limitations is what it boils down to. We are all going to have our limitations. No matter what we decide to use. Can I make a 60 yrd shot on an animal. Yes , probably about 95% of the time. Do I take percentage shots,NO. I know that within 30yrds, that animal is about to become table fair every time. Thats where knowing your limitations comes into play.