Very useful! I have a number of clients using the 70/20/10 model as if it is the answer to all development issues. One thing they forget is that what is in the experience of the 70% may not be what is needed going in the future. Your ideas add another way of thinking about this. They also speak to our view that you need to create insight even in training type situations. The brain responds better and people are more likely to take action as the insight will fit into their mental models.