RE: has anyone compared short drawlenght bows?
A very worthwhile suggestion in my opinion. To my knowledge nobody has done such a survey....probably because a majority of the shooters do indeed fall around that 29 inch draw length range and they normally rely on the typical IBO/AMO ratings in the case of speed. As for the other specs.....many of the bows on the market are offered in shorter draw lengths and lighter draw weights....so it would be a rather large comparison.
If someone had the drive and focus then I, for one, would be interested to see if the results changed for any given set of bows when measured at a shorter draw length and a lighter draw weight.