I'm seriously considering a 7/8 flatback Kolstein with willow back and sides. Does anyone have any experience or comments with Kolsteins or willow? Will the willow age and hold up like maple? I currently have a Wilfer that has a tighter grained top, much better grade ebony, medium flamed carved maple back and sides and, in my opinion, better workmanship. It's a beautiful instrument but it just doesn't have the tone or project like the Kolstein. Any comments, experience or advice?