Good evening guys...

I was just reading an internet article about arrows, FOC, and the kinetic energy.

I got curious and took one of my Beman ICS Hunter 340's and found the balance point on a nail(took me a bunch of tries, but I got it balanced!) Then I measured from that balance point to the inside of the nock. Then according to the internet site, I used this mathmatical calculation:

18 7/16" balance point (converted to decimal - 18.4375)
29" Beman ICS arrow

18.4375 / 29 - .50 X 100

My current FOC with a Beman ICS Hunter 340 arrow and a 125 grain tip came out to be: 13.57!

Isn't that just a tad heavy for an arrows FOC? I am curious about dropping down to 100 grain tips. With a 67# bow @ 29" draw shooting Beman ICS Hunter carbon arrows at 29" length, I could try 100 grain tips right? They might give me a touch more speed is all though. What do you think?