I have no doubt TSS is much more effective than lead, but I haven't tried it for just that reason. We hunt in increasingly developed areas, houses and other buildings are closer and closer to our hunting spots. In CT tidal areas, one can hunt waterfowl 250 feet from a building. When we got the first batch of HeviShot and Remington HD in the early 2000's, I was asked to see how far I could kill ducks at. As measured with my laser rangefinder, some were killed clean at over 80 yards. We thought we were supermen killing ducks at 60 yards with lead, then along came kryptonite. It doesn't take a math wiz to figure out that 250 feet is only 83 yards, the potential danger is obvious. It only takes one mistake to seriously injure a non-hunter and we all suffer. The new TSS loads apparently trump the HS and HD loads, it seems entirely possible to kill a person with #2's (the max legal size here) at legal hunting distance from a structure. Not a criticism of you guys using it, just saying.