it actually isnt as hard as it seems. i've done it a few times, and the key to it is in the limbs. you have to be very careful not to overstrain them, and to keep them relatively wide. these are just under 1 1/2 inches wide through most of their length, which is relatively skinny for one of my 53 inch recurves. i have made a handful of these, but i usually like to keep the limb width around 2 inches.