I recently picked up a new in box Grizzly G0586 8" jointer as well as a new Dewalt 735 planer for $600 for both tools. I have enough money to buy one spiral cutterhead, and i need to choose between the jointer and planer. It will likely be another year before I buy one for the tool i dont buy one for. Both cutterheads are about the same price.

My thoughts are that if i buy the spiral head for just one tool, I can simply do a final pass on the machine with the spiral head to make a smooth, tear-out free board. The biggest difference in my mind is the width, 13" vs 8". The most tear-out prone wood i use in QS African Mahogany, curly maple, and occasionally some walnut boards with a little figure in them. I actually haven't even tried any of these on either machine yet, so i dont know at this point how bad the tear-out would be.

What are y'alls thoughts?