I like Wasp SST hammerheads in 100 and 125. I haven't tried a lot of broadheads but this one works well for me and all the guys I hunt with.
Two seasons ago I stalked a deer in a high grass meadow and shot it quartering away at about 25 yards. My compound was set at about 60 pounds and the arrow entered slightly back as it should have for that angle. It took out the bottom half of two ribs as it exited. I found the arrow about 20 feet past where it exited. I've had and witnessed other equally impressive pass throughs with that broadhead.
I think there's a lot of great broadheads out there. If it's from a reputable company and if it shoots well from your bow, you're probably not going to be disappointed. I know guys who swear by mechanical broadheads too. I've never felt the need to change though.
I have tried more different broads than I care to remember and have settled on two- the Sattellite Titan 125 gr or 100 gr and the Wensel Woodsman 150gr. I used the Wensel Woodsman exclusivly last season and they were ASSUME!!
You do have to sharpen them as they do not come hunting sharp right out of the package(they tell you that). I used crotch sticks and achieved a scary sharp edge on them. They are available now in both glue on and screw-in.
A perk of majoring in wildlife biology in college is the plethora of hunting knowledge that you collect throughout your course load. One of the most important factors in whether an area can hold large quantities of animals or produce large antlers is forage.
Most universities, state schools and even community colleges offer basic botany courses and plant ID courses. Although it might not be feasable for the average middle age hunter to pay tuition and go back to college to learn hunting...