FULL BACKFILL: resets the bad separate data, forces S63 W1 start, and asks for final season/week (default S65 W10).
Drag this button to your bookmarks/favourites bar:
Drag GB Youth V18 to bookmarks
Run it only while logged in to Maxithlon.
This project uses only GB_YOUTH_CLUB_DATA. It does not touch GB_MAXI_DATA.