Have any of you had experience of or have any thoughts on the SimTech Aitchison drills used in an arable situation, particularly clay soils? Would it be realistic alternative to the John Deeres, Dales, Moore etc? It looks a blissfully simple machine and the T slot looks less likely to open up and expose the seeds than some other low disturbance drills if the weather turns dry ofter drilling. Trash and cover crops shouldn't be too much of a problem. However, depth control looks a bit hit and miss and the slot looks like it might be a motorway for slugs, but is it any worse than other low disurbance drills? I would be interested in your thoughts on this.