[Tamsaddle]

Don't know what you decided to do in the end re. which way to split your litter, but in a recent thread called "Piglet Weights", Kitchen Cottage has posted a link to an interesting document from the RBST about how much to feed to piglets and weaners at different ages.  They suggest splitting groups by size (initially) so that smaller and larger pigs don't become increasingly underfed and overfed when they are all together.  Also something about how long it takes getting a piglet weighing 16 kg at weaning to catch up with a 20 kg piglet - well worth looking at it.   Tamsaddle