As the title suggests. I started using it a few years ago, so mainly Pre lambing and during lambing. But just wondering if it really makes a difference, and at nearly £900 a pallet, that could be put elsewhere. I put out the black high mag ones in spring because I feel they're quite important. Ewes are big suffolk/mule and get through a fair bit of grub. I thought the crystalix would just give them something else to stop them getting "bored". But maybe some whole beats lobbed about could be an option too??