For the moulding line along the bottom edge of the buttstock, personally, I like it to be wider at the buttplate and grow narrower toward the trigger, terminating a little less abruptly. If it were mine, I'd likely start out at the buttplate at about 5/16 to 3/8" wide tapering it down evenly to a little over 1/8" and then flaring out. But it is a personal choice.