Stiffness was Less than our expectations for Adirondack Spruce nor were being these soundboards as acoustically live. Despite the great visual appearance, we couldn't in good conscience industry this spruce as Adirondack/Purple Spuce. A lot from the spruce from these areas is possibly White Spruce or even a Pink/Black/White hybrid. https://norwaysprucelumberforsale73951.review-blogger.com/51031251/spruce-wood-for-sale-things-to-know-before-you-buy