I have recently gotten the ok for a helical head for my 15" Grizzly Planer and was all set to order it but after reading several reviews I am not sure. To some reviewers the ridges that the helical head left were objectionable because of the additional sanding time that was required. I have a fair amount of curly maple and was interested in the helical head because it is less prone to tear out. Or would I be better off taking the thickness down to a certain point and then finish with a drum sander Thanks for any thoughts or experience you may have regarding this. Barry