Thanks,Most of the time we use the 2 inch spikes .( Added advantage of this is that they are picking up and throwing a fair amount of soil which ensures that all seed covered even though we are rigid 10m with no contour following. We tried the demo 8m simtech a few years ago but found that if using narrow points ,as on the simtech , with no contour following some seed gets left high and dry when drilling shallow.)
We also have threequarter inch narrow points but these are much longer and gap between seed boot and point is too large so some seed ends up not in the slot.We should really extend the boots but get on so well direct drilling with the 2 inch spikes ( except in the spring in slubber or in heavy frosts when we cant penetrate ) that we have never bothered.
does the drill DD in most situations, or just lighter soil,lower trash fields?