RE: Bow Speed Over 30 Inches
 

As PLB said. You don't. You just use the rating to comapre bows against each other when you are looking to buy. In te normal world a bow that has a faster IBo rating will be faster set up for hunting, too, assuming it has a similar setup. And as you have stated. It ain't a big concern to you.

RE: Bow Speed Over 30 Inches
 

Thanks for all of the replies folks.

I guess then the IBO rating that was listed on the bow when I bought it was performed with the 30in range cams (set at 30in) and not the set of cams (31-33) that are on it. I just have to do the math in order to figure out it's particular IBO right?

Sounds right to me.....I think:D