Yes, this is what really cements the blind-running concept into place. I am weird, I admit, but I really, REALLY love this part of training a young dog. As I move from one concept blind to the next in a training session, I can see that youngster learning right in front of my eyes! It is the greatest feeling. And things they learn in these blinds readily translate over to marks.
I have a young bitch right now who is going to be running a lot of concept blinds over the winter. She is a lot of fun, and I am really looking forward to it.