Background to my question:
On a different forum a question was raised about Tameshigiri in Iai. Actually it was about the reasons behind why not doing Tameshigiri (as it's the case in certain Iai koryu).
I replied along the lines that even if e.g. Tameshigiri was removed from an official curriculum it may still be up to the individual (high-ranking sensei) to train it privately.
I wonder now if my assumption is correct or not and if someone may even have examples (without mentioning any names...).