I don't use any Better Bottles, but I've read in one of the beer forums that Better Bottles also tend to split on the bottom seam. IIRC they were pointing to hot washing with PBW. To prevent cracking, I also think they rock these on a tennis ball to oxygenate the beer.I use them all the time and have only had one recent issue in two years and have brewed many good beers. I only use them for secondary though. Recently one of my bottles separated at the seam on the bottom...thank god it was during cleaning and sanitizing that I discovered it and not after putting beer in it...that would have been bad.