I used Thunderhead 125 for lots of years. They accounted for about 25 or so pigs and probably almost as many deer. Never had a bad experience. Last year I switched to carbon arrows and the 100s and still no problems. Got 4 deer last year with them and had pass throughs on all of them. They ran a total of about 120 yards. That's about 30 yards per deer average. The 100s do seem to drop a little more than field tips. About 2-3 inches at 30 yards. I never weighed them, but the claim that they weigh 106 seems valid.They are very accurate.