Dan, The ground I work is mainly flat, however in saying that if I get more sharecropping opportunities there may be some quite steep ground as well. The main aim of this seed drill is to seed oats ( forage wheat, barley) with vetch or lucerne and possibly some rape for finishing off lambs etc.
All drills i have used so far have been a straight combine across, mainly Inter 24 runs with finger tyne harrows behind. A good one i have used is a Inter combine with a 16 run Johns direct drill undercart underneath it, knife openers with tungsten tiles on the leading edge. While its a great drill in the paddock, it cannot sow annual ryegrass mixes at heavier rates, the metering rolls crack a lot of the vetch seed and being 12' 2'' is a right pain in the arse to do any contracting with as everyone has 12' gateways.
I would be very interested in independant depth control for each unit as i think it will give the seed a much better chance of growing well, which for sharecropping I depend on.
I have gone nearly completely away form conventional till, too much time, fuel and unless the paddock is rough, rips up too many stones.
Alex