Maybe I am not that great of a hunter but I have never put that much thought into it. I have shot through a crono. machine just to see how fast I was shooting compared to my old bow, and the differance between aluminum and carbon, but didnt really care. I dont even know what weight my arrows are or which arrow I have for that matter. But I do know that they are 30 inches long and I use 125 grn muzzys. Anyhow my point is I had no doubts in my equipment and they did just fine on my elk this year. And look at it this way yeah Fred Bear did alright with his setup but what about the Indians way back when after the buffalo. Dam I dont think that they had razor sharp 125 grain muzzys. shooting 295 fps. lol

Youll do just fine just relax take that good sweet shot and you will be eating elk backstrap before you know it.