I had the cane on my fingertips a number of times at primary school, and I have to say that I thought it was ineffective because, after the first two whacks, it didn’t really hurt.
I had the cane on my bottom but once, and it was severe, and it was intensely agonizing.
I believe that my headmaster planned it this way, and that is, in essence, why I had it only once.
I have spoken to quite a few chaps who were caned at school.
Most all of them have said of the cane on the hands, much as I have said,that it did not hurt overly much.