I note that a few mandolin makers and violin makers will extole the virtues of one piece backs. I suppose this is because of the rarity of such large pieces of figured wood.
I have several planks of highly figuered western big leaf maple in excess of 17 inches., about 1 1/8th thick. Aesthetics aside , is there downside to using this for one piece backs on archtop guitars ? They are about 12 years air dried and check and defect free.