Very nice write up!
Only part I'd like to contend with is the color change. Aaron F. (Iherp creator) had a 16 gram (I believe) neonate start it's change. Early change is becoming more common. I've got a 34G neo with green on it's nose. The Biak local of green trees can take up to 2 years from birth to complete it's color change.
The labial pits and head shape of the emerald really give it away and make them the most different for someone not sure of what they are comparing. The scales on a chondro are much smaller than a emerald too (IMO)