Stone arrow, Ash ,maple and oak are pretty hard material for spindle or hearth board. Try a pc of that pawpaw for both spindle an hearth. You need to use woods that are soft enough you can mark with your fingernail. I have used tulip poplar ,pawpaw, cottonwood, Yucca is excellent, mullen an even used sumac, also horeweed will work. Good Luck ;DLater Bob