I personally go against the grain on this one. I say faster is better. Does a heavy arrow carry more momentum and KE? Yes. Is a slower arrow more forgiving? Well, to a point, yes.....BUT, todays bows are made inherently more forgiving anyway. Companies are making bows to be more accurate, more forgiving, more repeatable and shootable. Today's bows are just so much more efficient than those of the past....You just don't need the heavy arrow for the KE anymore. Used to, you couldn't get an arrow to fly 240 fps regardless of how light it was. Just not the case anymore.

I'm shooting a 380 grain arrow 313 fps. I'm producing 82 ft pounds of KE....On top of that,for hunting I sight it in for 25 yards. I shoot an inch high at 20 yards and an inch low at 30 yards. Come on. What more could you ask for???

Pysics are pysics, and can't be argued. A 425 grain arrow shot out of my bow will fly slower, BUT..it WILL carry more KE. It WILL, to a degree, be more forgiving. But really, how much KE do you need?? I'm pretty sure 82 is plenty.

As far as the short brace height. You will be more sucesptible to smacking your arm with a short BH bow, but if you install a string supressor, you're in good shape. That pretty much takes care of the arm slap. They are a tad less forgiving, because the arrow is under the power stroke of the cam longer, which is why they produce higher speeds. But here again, companies are making their bows more forgiving just by design and what ever tricks they have, so I personally don't feel it comes into play as much as it used to.

With all that said, a longer ATA bow, with a longer BH, heavy arrow flying slow will indeed be more forgiving. Not as much so as 10 years ago, but they will. But me, I'm going light and fast.