I am going to fill you in here and there with what I see in the pups 1 at a time here and there.
Today, as I was taking photos and videos and observing, I noticed the tri pup was full of it but she crashed earlier than the rest. I will watch if that means she was sleeping before coming out or she has an exhuberence within her and simply expels her energy faster than the others. She is spending a lot of time attempting to do new things. Her brain, thus far is interesting to me as she doesn't give up nor does she get frustrated. She just tries again. She also runs like the wind.
Each day I will try to cover 1 pup and those observations may change as they get older.
I do find it fascinating that 9 week difference doesn't make a difference for these pups and it is not just the older pups that lend me to believe that their temprament is outstanding. Usually 2 weeks, at this age is the maximum you want to mix in play. That changes as they get older till age doesn't matter but it gives you a bit of insight as to who they are. I thought initially maybe it was a 1 off or a 2 off but each day, many times a day they play together.
What have I found from this experience? The older pups dumb down their play and are gentle and the younger attempt to do what the older pups can achieve. This benefits both ages, IMHO.
Cinnamon is a laid back dog. She is a very friendly, playful and yes kissy kissy where I know some do not enjoy but you can stop the kisses, if so desired. It is curbing their affection but they are people pleasers and will curtail their affection if you so desire. To me though, you are missing out but that's just me.
Be sure to check out the videos and don't forget about the shorts.