Engines range from 15 hp to a 20-hp Kohler. Other perks include foot-pedal speed control on models with hydrostat drive and a diagnostic dash that even tells you when to add oil. An upright design also keeps controls and the intake screen in the same place when blowing or vacuuming. There's also a pushdown stop switch that can't be left in the off position. Two chipping knives and four fan vanes ingest waste without prodding, while hinged hammers pound leaves and twigs without clog-prone screens.
Internal fins mix debris and holes provide aeration.
A 16-in. opening eases loading, while the locking lid prevents spills. The Compost Corral from Gear Up Technologies holds 36 cu. Boards slide in and out easily for wide access.