I've been having to use our Easyfits on the largest setting since he was about 5 months
I kept putting them on the medium setting and I kept hearing popping noises every time he moved
the rise poppers kept undoing when he moved! Then they started getting quite low in the rise anyway - but he is quite a long and chunky baby. They fit him on the largest setting fine, no leg gape at all and the tabs meet in the middle.