Great Plains Turbo-Max – Vertical tillage machine with the option of angling coulter gangs from 0 to 6 degrees.  Will turn up more soil with the increase in angle.  Cuts 10ft wide and aids in the faster breakdown of crop residue.  Suggest using a 120 horsepower tractor, with a minimum of 90hp and is transported by at least a ¾ ton truck with reese hitch.  Rental rate is $9.00/ac with a minimum charge of $45.00.