I think BOB will say its ok, he does like front load carbons also, after speaking to him and reading Pete's work with heavy FOC carbons Iam tinkering with 130gr stos and 125 gr insets with 100grain brass inserts in my goldtips for 35grs up front, might be to much, also trying the 200 grain ace heads, Man those are like spears!!
All that said all my deer, hogs, lion fell to a 470gr goldtip out of 55-58# bows and pass thru and quick deaths were the norm, if its tuned then its deadly!!