Ross is 4 months old tomorrow.
Today he weighed 19.4 kg and was 51cm at the wither.
Loki was 21.10kg and just over 51cms at the wither at the same age. Whilst Mikey was 19.55kg and 52cms. So the same height as Loki, but the same weight as Mikey. No reason not to be pleased with that.
Anyone who's interested in comparing or just seeing what they looked like (and Louis) at the same age, click on the link (in pink) and scrawl through the posts.