Rear bearings, green vs timken

I've read and read and read.. Lots of opinions on green bearings.. Lots of people saying they fail, but what I have not read is someone that actually running them and theirs failed. Just people saying they fail. Sure there may be pics of them, but what did they do to cause them to fail? Any bearing can fail. There is always a cause. With that said, Im running them and I have not been easy on them, corners, sideways, you name it. I know a lot of drag racers that are using them as well. I say run them!