Going to change my planer and joiner to spiral cutter heads. Figured I would have to decide if the Byrd was worth more than the Grizzly. Much to my surprise the Byrd is a lot less $.
Did a search, most of what I found seemed to point to there not being any appreciable difference.
Thought I would ask before settling on the Byrd if there is some good reasons to pay more for the Grizzly.