T was up properly on all fours at 6 months but spent the whole time trying to bear walk which is infinitely harder. If she had stuck to hands and knees from the start I think she would have mastered it by now! I wouldn't say T is going to sprint across the room with any speed for several weeks, she's literally just this second worked out how to move forward without flopping on her tummy. She still goes backwards faster lol!
Her on all fours to sitting is beautifully mastered though.
I have been eating cake and chocolates, binge drinking and eating out. Now I need to be healthy!