I've been using FMJ's the past two years. I don't use the BAR and have run into issues with mushrooming on the front of the shaft when practicing with broadheads in a foam target, including whitetail specials, so if you do go the FMJ route I would think you would want the BAR. Some guys also use footers/collars to help prevent mushrooming. Pretty sure you could run a collar and standard insert to similar effect as a heavier insert. That said between mushrooming and bending, I've decided to try something new after this season probably BE Rampage. BUT don't let me scare you away if you want to try them. I shot three deer with FMJs last year and all blew right through and the arrow held up. I think they're a decent shaft but too finicky for my taste.