Practical test: Grégoire Besson Discordon 4.2m DXRV-HD cultivator For the fourth of profi’s detailed one-pass cultivator tests we profile Grégoire Besson’s 4.2m Discordon, which shouldn’t have too much left to prove as it has been around, in various guises, for the past 15 years. Andrew Faulkner assesses how this French stubble buster stacks up against today’s one-pass competition