Hi Tom,
i am in the organization IMAF (http://www.imaf-germany.com) and no student of Eisenack.
For long time a had a gunto , the blade was made from ishido mitsunobo.
The blade needs a polish and i was not sure if it was a true gendaito so i sold it.
This year i was looking for a katana for tameshigiri. I purchased a chinese one.
And now i am interesting once again in nihonto, maybe also for training.
cheers
Oli