Why a disk and not a drum? What makes another companies chipper better than the next? What are the problems with chippers that need to be fixed or what would all of you like to see as the ultimate chipper? Who is currently #1 and what do they need to do to improve what they got? Does the market need different models? Would whoeverm reads this please respond as to what they would do if they were going to build them best chipper? Thanks for responding.