Anyone who agrees that 55# peak and 600 grain arrow will do the job can't argue about your setup even with the 347 grain arrow.
I won't argue that, Sylvan, but put that 600 gn arrow on his bow at 70 pounds and I know youwouldn't argue that itcan't do better than the 347 gn arrow. Especially when he's talking about some of these mud-caked, thick skinned, 300-500 poundTexas hogs.
Oh, and while you're at it, calculate the midrange trajectory for both arrows at 30 yards and tell us what you come up with.