One document, but everything separated into 3 sections - it will mean duplicating sections, but then I can just go straight to the U11s and below; 12's to 15's; or Youth and know that everything I need is in there.
One document with relevant parts put into 3 sections, one for U11s and below, one for 12's to 15's and one for Youth. Keep most things together but separate the differences.
Exactly as it is, just one document to go through.