Christopher Li wrote:
The usual pattern would be that Takeda would breeze into town, have somebody (such as Yukiyoshi Sagawa, or his son Tokimune, who would travel with him) set up a local seminar and then move on to somewhere else. Everybody in the seminar would be required to sign his enrollment book. Most of the 30,0000 people in the books were therefore people who saw Takeda no more than once for a couple of hours. The number of students who actually studied with him over a number of years was really quite small, so 30 represents a fairly good percentage of them.
To know that for sure, you would have to know with some authority the actual amount. What was the number of people that were regular students of Takeda vs.the temporary students? Was it 20,000, 10,000, 5000, 1000, 500, 100, or less and can you give a source for this information?