I appreciate all the candid comments. I am not really looking to change but I just hear a LOT of hype about mechanicals and wanted to get down to the real meat of the issue with experianced hunters who have used them.
As far as the flip side from Goose I do agree you have some good points but at least some of the more advanced or mechanical systems increase your odds by far. One for example being a compound bow over a long bow. You can shoot farther, faster, harder hitting, and over all an exceptional improvement over a wide range of scenarios. Add in reliability(never had a compound bow failure) to that and you have a case for one over the other for those who choose that option . It seems by the comments from mechanical users that they don't offer a huge advantage over fixed blade.
The reason I wondered why you were asking is that is kind of a hot button issue on this forum. Some posters here are very passionate in their distaste for mechanical broadheads. I was a little suspicious that you might be asking simply as an excuse to criticize. In reading your above comment I see that I was wrong, so I'll answer the question.
I shot a big old, cut-on-contact, four blade fixed for my first ten years of bow hunting and had good results. I did not shoot very fast equipment in those days and was limited to 20 yards. Eventually I began to upgrade my equipment and my arrow speed increased. As I got above 270fps I began to experience tuning problems. I tried a lot of fixes but nothing really closed my groups up until I went to the "Rocky Mtn. Sniper" (the precursor of the Rage-2). The improvement was immediate and I increased my effective range by 10 yards in the first season.
Today I am a died in the wool Rage-2 user. I shoot a bow rated at 318fps and I land tight groups at 45yds with them. I have seen the Rage-2 open gory holes in deer over and over again. Two years ago I made a horrible shot that entered a quartering away buck in his rt. rear leg and exited in his belly. It was a terrible situation but the Rage opened up such a large wound that I recovered the deer.
I am not proud to admit that in 10 years of shooting a fixed blade and 5 years of shooting a 2 blade, slip cam, mechanical, I have lost deer with both. No excuses but it was never due to a broadhead failure. If a hunter's fixed blade head is working, I say keep using it. I only switched because mine were not flying right. Now I am sold on the Rage-2.