CM, I have found that is a company over rates the IBO of their bow, then they over rate the AMO too.

That said, I have not owned bows from alot of companys in the last few years. I have been staying pretty much with the same few.

I have found that Hoyt, Mathews, and Dartons are usually fairly close to their claims.(within 5fps)

I have not had a new Mathews for probably 4 years now. I had found back then that the Mathews bows(at least the ones I set up)were actually drawing about 1/2 to 3/4" longer than claimed.

The only two bows that I have found to be way off of their claimed speed in the last five years or so is a Parker Feather Mag II, and all three of my 2003 Hoyt Protecs.

The Parker was roughly 15fps slower than claimed. My buddy had the exact same bow, it was the same speed as mine.

The Protecs would all achieve the IBO rating at 28.5". This puts them at least 12fps over the rating, and possibly even 15fps over the advertised speed.

I agree with you that the AMO speed would more closely equate to the average hunting rig. Most bowhunters use a heavier arrow for hunting, and bigger peep sights, along with maybe a kisser button. This all slows a bow way down.