I have about 3 dozen carbon GT LII's. In thousands of shots I've had two break, one stuck in a 3-D target and one miss that hit a tree. Mine have the brass inserts which imho, gives a better FOC for bheads. They are nearly identical to the 10 pt except have alum nocks vs plastic and are much cheaper from Danny Miller. I have my inserts epoxied in as my experiments have proven to me that spinning the inserts to align blades w/ vanes is an old wives tale, lol. Aluminum are better for 3-D, as they don't stick in the targets as bad. I use Slick Tricks and you can take the wobble out of the via spinning the washer between blades and inserts. Never had one splinter in meat.