I have read a lot about the specs of certain bows, but I was wondering how you figure the IBO for specific draw lengths etc. I bought a used (2005) Hoyt Ultramag recently. It has 28 inch draw and is set at 60#. My arrows are Gold Tip hunter 5575 with 100 gr tips. Can anyone tell me what the speed will be for this setup, or do I have to take it somewhere to check it. Not that it matters much, but I am curious. Also, can any of you Hoyt owners give me some feedback on this bow? This is my first relatively expensive bow (bought it for $250 bare), but it lists for $400 new. Some of the Hoyts are pretty hefty in the price category, as well as some of the others (Matthews, Bowtech etc.), but what is the major difference between this bow and some of the other expensive ones? As far as I can tell, the only difference is the ATA, and the riser material (magnesium or aluminum) between the Hoyts. I don't know much about the other brands. I know, most of you don't like Hoyt bows (from what I have read in my other posts), but any comments?