RE: how much is too much on brace height
As the others have mentioned, unless it is way off then do not concern yourself with it. It was not too long ago that, for example, Hoyt had a different axle to axle length and brace height for each different sized cam that they offered for each respective draw length range. So, if you had a longer than average draw length then the axle to axle length and brace height were larger than advertised specs.