I just got some Tiger Sharks. I went with them because they are the same weight at my Deltas, so I shouldn't have to retune to use them. They are VERY impressive. I used a jewel stick and finished with an EZE-Lap M diamond hone that I carry on my belt. It works great on knives and seems to do the trick on Sharks as well.
My understanding from the research I did before ordering these is that Simmons broadheads work very well on lower poundage bows, with several reports of complete passthroughs with low 40s bows. I know I can blow through deer with my Kanati and Delta combo, so I don't see any reason to believe the Sharks won't do as well in terms of penetration.
The huge holes and short, gory blood trails are what enticed me to give them a try. The price is also reasonable as well.