I'm about ready to pull the trigger on a new planer. I've picked the model (G0453ZW), now it's time to decide weather to spend another $600 on a Shelix cutterhead, or just use the spiral cutterhead that Grizzly uses.

Or, I could buy the G0453W model and replace the 3 knife cutter with the Shelix.

Any comments, and how hard is it to replace the cutterheads? I don't need a 3 day process when it arrives.