I had a bunch of 1.0s where the tabs were fraying or separating. I don't sew and don't have a sewing machine, so I emailed Cottonbabies and asked what I can do about it.
They said to just mail them the diapers and they'll either repair or replace.
So I did (in 2 batches, cuz I couldn't part with them all at once!) and they replaced them with brand new 2.0s. I couldn't be happier with the speed and results. YMMV, but I say, if you're having troubles, just email them and lay it all out and they'll do their best to make you happy.