Yep, I've got several of the MAXXTECH 9x19 brass in my collection. I was talking to the engineer at MAXXTECH at the SHOT Show about their brass and he told me they were able to eliminate one whole step in the brass making process with this brass. The intent was to prevent bullet setback, since they're all loaded with the same bullet, and to make it cheaper to make.
I told him I had seen some with the thin portion of the case separated in some of the brass I buy from our range, and he asked me to send him pictures of it, but I had recycled all of it, so if someone runs across some with a split between the step and the thin wall of the case, let me know and I'll forward a picture of it to him.
Hope this helps.
Fred