you didn't state that they had to be carbons in the post so i'll say, stay with the aluminums. xx75's or xx78 super slams. they have been around a long time and are excellent. i don't use carbons anymore due to last year i shot a doe and when she ran off i found my arrow in two pieces and splinters everywhere. had to trash alot of the meat because of carbon splinters. nothing but aluminums for me. shoulder bones are no match for them