Just checking in with your babies and how they are doing with head control. DD is almost 9 weeks and has fairly decent head control when she's being held, she still doesn't do much during tummy time but when she's on our chest she holds it fairly well.
Re: Head control
On my chest, she'll lift her head for a few seconds or turn it to look around.
She rarely gets traditional tummy time- she's usually held in the positions I mentioned or in the moby where she also gets practice holding her head up.
When she gets tired she does go a little floppy so I have to keep an eye on it. Traditional tummy time was frustrating for her because I think it's a little harder so now that she has more strength (and can stand to be put down again) we'll probably do a little more of it.
She usually only tolerates a couple of minutes of tummy time, but she loves to be held in a standing position and looking around and I think that's when she gets the most practice with head control.
There is such an incredibly wide range of normal for this milestone that I wouldn't fret too much, @groovylocks. I always feel like other people's babies are horrifyingly floppy when I hold them but when I mentioned this to my pediatrician he said my kids are just freaks of nature and that most babies are floppy until three to four months (I was worried my littles were too stiff/rigid - can't win for losing as a mom, you always worry)
We put her in the bumbo at 6.5 weeks just to try, it supports her neck a little in the back and I keep an eye on her but she really likes it.