We loved our BG 4.0s for LO1 and now #2 is on the way in a few short months. I looked into replacing the elastic to update my diapers and found a you tube video about knotting the existing elastic instead of adding new. I tried it on one and the gathers are definitely tighter, but I am worried that there won't be much give.

Has anyone tried this? How did it work? Hoping for more info before I do it to the other 25 diapers!

Edit: here is the video in case you are wondering what this is: