Despite what the manufacturers may say …. there is no perfect seeder or drill.
Each type and model has different attributes that may or may not be suitable in any given farm situation. We consult with clients about their present cropping regime and following a survey of the farm identify what changes, if any, may need to be made to current practice. Designing a suitable and flexible adoption plan helps guarantee ultimate success with a new system.
Poor drill selection has unwittingly cost many 
farmers a lot of money in the past. Drill selection, therefore, will be based on farm profitability, finance available, soil type, cropping system, rotations used and residue management. Existing equipment, that is surplus to requirements for a conservation system, may be sold to release funds for further investment.
The choice of seeding equipment in Europe is poor compared to the Americas. Low soil disturbance disc drills are popular in these regions. Tine, knife and cultivator drills are common elsewhere. Every model has positive and/or negative attributes so it is very important that the farmer clearly understands the principles of a conservation agriculture system and how they relate to his current cropping regime. Respecting these principles, while choosing a suitable drill, can guarantee the development of a successful, productive and profitable farm enterprise.
Remember …. there is no perfect seeder or drill.