Ok. Nice perch. Hope the tiercel works out for you. You got some good ideas from some good falconers. Bottom line is that he's a baby a needs to discover things in his own time. The switch up works good and that seems like the way to go. I recently heard of sparrows as bags from a guy in idaho. Increases footing skills and agility. Good luck. I use the kite then bag ducks so pigeons are no longer in my equation. Just go with what works within how you like to train and how your bird is respondng. Best of luck.
I live in Fremont on the Eastern side of Nebraska
Where in Nebraska. We have close friends in Ogallala