Like I said in an other thread , I've used wasp jack hammer 3 blade open on impacts , reg 125gr sst(alum arrows)first deer , and vortex 100 grains open on impacts , and had success , but a few years back after I got my first fast bow I had trouble getting my heads to fly well w/carbon arrows and I no longer wanted to use open on impacts I was told about these Rocket Ultimate steel 100s' . I bought a 6 pack , put em together and shot three . They fly GREAT ,and do hold up . That Sept I shot a spike elk at 28 yards and my arrow just blew through , he never knew what hit him , He walked up about 5-6 yards stood for a moment as my dad cow called holding him , and reared up and back flipped . Its the only big game aniaml I've killed with these heads but the proof was there for me .I bought another 6 pack , so I should be good for a while , but if your lookin into a solid 3 blade , look into these rocket ultimate steel 100s' ...NMHUNTNUTT