Not many, but I don't think I've ever had a nicer kit of young birds. And fly! They do a solid hour every morning out of sight for much of the time, and another half an hour in the afternoon when they don't have a toss. We hear the terms "weightless" and "bouyant" to describe how a pigeon feels when it is fit. Well I've never had pigeons that are so bouyant in the hand before. I quietly picked a few up just a minute ago, they fill the hand, but they weigh nothing! Like they are made of air

Pink in the flesh, silky in the feather, bright in the eye, lovely. These things don't just do laps, they go over in a line abreast and away again.

Wrong.
Yesterday I took them out 15 miles to the first bend in the road heading west. I was going the speed limit, 100 kilometres per hour coming back, they weren't far behind me. They landed in a bunch and they were really puffing and blowing. Of course they recovered very quickly, but that shows that zooming around at home for an hour is a whole different thing to going even 15 miles in a straight line at absolutely full throttle.
I believe that road training does not get them fit. They have done that at home. Road training makes them go faster. Teaches them to fly with real urgency.
These have had about a dozen tosses now and it's sinking in. They are learning to race instead of home.