Well my freind welcome to bowhunting! First off mech`s and fixed blades are both considerd broadheads Now with that out of the way I know i have seen these type post on here before. And if mind mind serves me right, it lead into about a five or six pg. argument the biggest thing i think most are concerned about is penitration from mech`s. Not angled shots! THE BLADES WILL OPEN ON ANGLED SHOT`S! with out any problem! Mech`s today are made a lot better than they used to be. Some bowhunters say they will never use them and others have no problem with them and take game every year, Fixed blades on the other hand well lets face it, The blades are already open and ready to cut! But they do however take a little more time getting tuned into shape but once they are well in "my opion" can`t be beat! But if your bow shooting fast enuff and producing enuff K.E I don`t think you`ll have a problem at all using a top quality mech I have taken game using both type heads, And will contiue to use both types heads with out worring at all. But you still have to put the arrow where it should be, know matter what head you shoot!