>>53821768So far gen 7 or older have never been given any assigned sizes so they could all come in on 0.0.0 if so make sure to grab your tiniest mark for all Pokemon prior to gen 7 transfer.
Any other games should work the same as they do now.
SwSh/BDSP don't have Scale so again if none is set you can get the tiniest mark on all your Pokemon however they will have height and weight from those games.
Ideally for Pokemon in gen 7 or lower they should make it set 127 across the board but im not putting any hope of them coming in at anything but 0
