farmerbill, I have obviously offended you, and for that I apologise. I certainly was not suggesting that you were not telling the truth, and I did not mean to infer it. When I said that I tended to accept Welshnwilling's answer, it was from the point of view of the "targets" he referred to - ten small units being easier to notch up the required ten farms, rather than ten big ones. And I did say I accepted your post as being accurate.
I still think it a waste of time and effort to attempt to count a big mob of sheep at a distance - in my younger days I had a sheep and cattle station in Australia so have farmed bigger numbers too, but only about 1500 sheep.
I also totally agree with you about the waste of money of a "nannie" vet worming and ear-tagging my animals, but I do not make the rules. I worm them myself in between his annual visits, but it is compulsory for him to do so, and I fit my worming programme around his visit - except it can be anytime between mid-October and Christmas week, with 24 hrs notice. I originally had quite a problem convincing him that I had wormed sheep before, I had brought a drenching gun to Portugal with me, and that I did not need him to do the job for me, but only wanted the drench.
Again, I assure you that I was not suggesting you were lying.