I received my Lionel C-Liner this week, former MTH tooling. I think it looks spectacular - Lionel nailed the dark green, and the gold tint of the pinstripes accents it perfectly.
On the bottom of the engine was the MTH style QA stickers - the oval gold-colored ones with the inspectors' number in them. I hope this means the former MTH tooled pieces are still made in MTH's factory, which IMO has always had better quality.
~Chris