CXT and Charles were able to say what I was thinking better than I could (good job ) so I dont have much to add to this thread.

All I have to say is that I have been to chanbara seminars from Dana Abbot and loved every minute.. but to me chanbara and toyama ryu are two very different things.. and if I'm doing serious training, especially from someone who is teaching a tameshigiri lesson, I'm absolutly gonna make sure they have proper lineage/training and know what they are doing.
Saya no uchi de katsu