I have use many black eagles over the past few years. The rampages, Spartans, and X Impacts mainly. i am a Long Draw so i am shooting the 250 spine arrows. The toughest have been the ximpacts, followed by the rampages and then spartans. a lot of that is probably the insert choice. I have used the standard half outs, the firenock half outs and IW HIT system in the rampages. The IW system is superior to the others. For the X impacts, i have used the BE FOCOS system, the ethics system and IW Deep 6 HIT system. Again the IW system takes the cake. for the rampages I just used the standard factory insert with 50g of brass in the back. Out of my 12 arrows i built all but two cracked, and they all cracked going down the shaft from the insert end about three inches. I am going to chalk this up to being a thinner walled arrow than the other two. If i shoot them again i will go with the ethics system on the spartan arrows. And out of the three arrows the spartans were the ones i shot the best overall. I have yet to shoot as good with any other arrow set up i have tried so i may go back to them soon.