I agree with Pat. Lots of variance in ring thickness to consider and an even thickness taper is the goal, not what the rings might say at the fade or anywhere else along the limb. Now having said that, your limb width is typically less than 2 inches at the fade. The ring thickness CAN be different one edge to the other, but often it won't be. Check your thickness at the shoulder of the fade on both edges (beginning of the limb). If the thickness is the same on both edges, then it is right. The feathering might look off. You may also find that your thicknesses are slightly different, and by adjusting that, the feathering looks cleaner.