You realize this is like the 4th batch right?
I have been buying these tubes since the beginning. The first two batches were hit or miss, mine were fine, my buddies were junk. This last batch I bought have been great, I haven't had any issues and have actually been riding on them for quite awhile. After talking with customer service it sounds like they found out the issue on the first batch and fixed it with the latest round. So take all the old reviews with a grain of sand. The issue has been fixed.