It is always nice to see someone discovering the joys of playing with a 22. The KYL is interesting, but I see it a way of adapting simple offhand plinking to the limitations of being on a rifle range.
Things were much simpler 5 or 6 decades ago. In the "Olden Days" as my daughters refer to the days of my youth, a regular pastime was to get a box of 22 shells and go to the city dump. The casual targets I used for the KYL equivalent were the caps of small glass aspirin bottles (smaller than a dime). When the challenge began to wear off of that, I would stop using the sights. Having the time a resources to develop into an instinctive shooter has served me well through the years, and I am afraid that is too costly unless you are using a 22 or an air rifle.
All of this is starting to remind me that I need to go burn up a couple of hundred rounds of 22 shells...