I'd be more likely to call it due to ignorance. Not a one of these guys arguing against it has ever tried extreme FOC. They choose to ignore and berate anything and everything that doesn't fall neatly into their narrow vision, rather than experiment and learn.

What people like bowdoc, quicksilver and MeanV can't seem to understand is there are a great many bowhunters who use lighter draw weights and shorter draw lengths, so they cannot generate the extremely high energy levels these speed freaks are using to achieve the results they get with their ultralight arrows. They have to shoot a 350 grain arrow at 300 fps for 70 fpe just to get the same penetration potential of a primitive hunter using a 700 grain arrow from a selfbow at 150 fps and a mere 35 fpe.

Arrow weight goes a long, long way toward making up for a lack of energy, and the heavy arrow does a MUCH better job of retaining that penetration potential downrange - where the deer is standing.

Doegirl, 400 grains certainly is NOT unreasonable and, like Straightarrow said, it's very easy to make up a carbon arrow that'd work perfectly for you. Putting extra weight up front, by switching out the aluminum inserts for brass, will allow you to use a heavier, stiffer spined arrow with your current broadheads. It will open up a whole new class of arrow shafts you can choose from. And you will get a more effective, better penetrating arrow for you to hunt with.