Nick,
In many cases and with many teachers in Japan, there is no real difference between the two terms. It's a case by case thing depending on the ryu or person.
"A rose by any other name..." No matter what you call it, it depends on the intent of the person or headmaster of the ryu.
Donn Draeger's writings were the first to really make such a clear distinction between "jutsu and do" and many authorities remind us that it was just his opinion. I think he had reasons for doing it that would take too much room for this forum. Do some research yourself and see what you think.
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