I use quite a few different backings. Pretty much I think of about 3 classes of backings, soft mdium and stiff. I try to match them to the belly the best i can. Hickory and boo I rate stiff, maple, red oak, pecan, ash I go more by the density in how I apply it. Maple, hickory and boo are my main backings. I use the maple on all the softer stuff like cherry, yew, cedar, even red oak and most other white woods I come across. Steve