ahh i forget the numbers now...think im at 460ish with tracer nocks...430ish without...

crunched numbers for hours one day....came up with 450-500gr to be optimal for the most speed and most KE out of my bow. more weight lowered speed and only bumped up KE slightly...less weight took KE and gave me only a tad more speed...found that area to be the balancing point...arrows fly great and penetration seems awesome...