It is beyond me, why anybody would bypass putting on C gussetts when they are as cheap and as simple as they are to do. Why risk it? You're about to drop coin on big tires/wheel package but spending the less than 200 dollars to protect the C's isn't important?
I'm running the EVO Gussetts, beefy pieces and I have no worries about bending a C. I'm not even a heavy wheeler, just some mild trail usage. Don't skip it IMO.