On size being larger than parents,don't forget that you can always get a thro back and yorkies used to be larger than today,we have breed them down to there current size..I saw a yorkie that was in a litter of 6 puppies,5 were under 5 lbs and this one weighed in at 12 lbs..same parents,they own the parents,yet they landed up with Moose,yep thats what they named him