Thanks for everyones input on my previous questions. Still trying to decide on 15 inch stationary planer. Can anyone tell me if it is worth the extra money to get a planer with a spiral head cutter. I run alot of 8/4 hardwoods. I do not mind sanding, but since I have never owned a stationary planer, I am wondering if there is a big difference in the smoothness using a spiral vs knives. The Yorkcraft YC-15P 15 inch planer is a real bargain, but if you want a spiral head, it cost another $700 bucks. The Grizzly G1021X is $1700.00 and comes with a spiral head. The Powermatic 15S is the same price as the Grizzly, and has a spiral head, but not a real spiral configuration. Any input is appreciated.