I've read it all. I've followed all of this very closely since I have an unopened box of TMP and it was going to start my new 250g peninsula. I've been very interested in finding out what happened.
However, before anyone posted ICP tests with iron in the 30-40s, Hans had already said the German line of TMP had been 30+ for iron for over a decade.
I brought up to Hans that a couple recent ICP tests were showing elevated iron and manganese. Unfortunately, I couldn't find the Facebook posts with those tests. It was then he said iron is usually around 30-40 with manganese around 6x higher at 180. (I'm going off memory for those numbers since I don't want to read 10+ pages to find it all again.)
Again, I'm not doubting the issues. I've seen the reports and posts before most. I still think something happened with a batch or two. My unopened box is from Germany (I said Turkey earlier in the thread but I was wrong) so I'll likely use it to start my new tank. An ICP will be done 2-3 days after it's all added and before I add any livestock. It will be a couple months before I have that info to contribute.