I'm new to sheep and have a small flock of Balwens. I know I should have put in replacements as soon as but I have two that have lost their EID tags one certainly in a fence, her ear now has a slit about 2 inches long, the other has a notch where the tag pulled out. I will do them now lambing is over but was wondering whether people on here have a preference that they find is less likely to be lost, my loss rate is 25% I think that is quite high and with one ewe the damage to her ear I felt was not acceptable.