Bushman,
The bow was made from fully quartersawn ash (white ash). It was an experiment, I made it as close to 35# @ 28 as I could then I backed it with hemp twine to see what the effect would be. I did not induce any reflex (you could if so desired). The bow jumped to 45# (44.?) and had about 1/2 the expected limb set. I take a flat scrap board (1&1/2 the length of the bow) cover it with wax paper and tie a knot in the twine. Staple that knot about 6" longer than the bow and run the twine down to the other end (6"longer) and staple that down. Now just go back and forth with the strings touching each other (staple both ends of each one) until you have the width of the limb plus a little more (about one to two strands). Coat the whole thing with titebond (fairly heavy) and let it soak in and dry throughly. Once it's dry simply cut the twine loose from the staples and you have your twine backing ready to go, and the glued surface will be seized for gluing to the bows back. After you glue the backing to the bow and it's dry, trim to shape. That leaves an uncoated surface for you to first stain and then glue with another coat of titebond...finish anyway you wish....
Medicinewheel, As far as I can tell the Vikings, Franks, and Normans all decorated their bows with paint, carvings, and metal as well, with copper and silver being the favorites. This would be especially true for their combat weapons, it suited there individuality and "in your face" style of fighting.