We discussed this on the pod this week. We didn't put a percentage on it.
Sounds crazy on the surface that a high schooler would make the 100m team, but Erriyon Knighton was 4th at Olympics at a younger age. Knighton was 17.5 when he got 4th at Olympics.
Miller turns 18 next month.
Think 5% is too high? Sounds about right to me.