I wonder how heavy my 3rivers ~50# spine 32" (33" with field points) wood arrows are. I had to arch quite a bit to reach 145m with my 45#@31" Nomad Korean bow drawn to 32", and undershot a lot at a clout shoot. It was rather disappointing... but that's to be expected if the arrows are heavy. Korean bows don't store that much energy, I think less than a straight line at full draw. But so much better than my glass Magyar bow which handshocks below at least 10gpp. My heavier horn Magyar bow is most definitely not a flight shooter, except maybe for broadheads. Anything below 9gpp would damage it, I think...
A Manchu bow would also be great for broadhead type arrows, but not so much with light arrows, I imagine. as long as they're around 12gpp at least.. or if one optimizes it for speed.