If I understand this correctly, the fact that the bonus is -9 to +8 has some deeper implications. Because you have to divide by 3 and round down, the -9 bonus is the only one that will get you a 3 adjustment. Taking that a step further, there really isn't a range of 18 different bonus attributes, but rather 6 possible adjustments (-3,-2,-1,0,1,2). Here is a chart that shows what the "under-the-hood" ratings bonus would be for each of the bonus values. I then translate it back into our famil