Usually, if the bow is tuned right, BH and FP will fly pretty close to the same. I've noticed a big difference between the two if I was using straight fletching rather than helical fletching. It seems to make a difference to me, that's why I've always used helical fletching.
But arrows are expensive. The Slick Trick BH I tried shot just like my field points, so did the Muzzy three blade broadheads. Rage BH will give you the flight that you want, but I think they're over priced. I've used them before and they worked just fine. Modern mechanical BHs are a lot better than they used to be.