The difference between the two outserts are the Black Eagle are longer and smooth. The Firenocks are shorter and grooved/fluted. The Black Eagles cover more of the shaft, more footing by about 1/4". One is 7075 t6 the other 7075 t7 aluminum.
I've bent some of the Black Eagle outserts on direct hits with rocks using Deep Impact arrows, hits that would destroy other arrows. Does anyone have any trial and efforts between the two? Despite the Firenocks providing less of a footing, I'm wondering if the fluting helps durability at all.