Its just not sustainable to be running ewes for 3 crops is it! They have been good sheep up to now, they keep condition well, produce strong lambs and better foragers but now have fallen out of favor. I will see how my 50 new ones perform and keep there teeth.I heard the same from a local farmer a couple of years ago. He reckoned he only got three years out of most of them too. I could hardly believe it at the time.