Allflex will let you have either. They rage the collar better tho.Why anybody would even entertain a new collar system now is beyond me, so expensive when the technology has clearly been made compact enough to fit in a tag. If you’re going block calving you’ll need 190+ tags they’re under £30 a piece so less than £6k. 190 collars is bound to be tapping on for £20k now?
Same cost to rent, tag is cheaper to buy but same cost to rent...