How the hiring pipeline works
A handful of national agencies supply most large festivals. Register with two or three of them in February; expect deployment offers rolling from April.
The kit you'll actually need
Waterproofs (real ones, not budget), proper walking boots (broken in), sleeping bag rated to 0°C, headtorch, portable charger, ear plugs.
How to get invited back
Turn up on time, uniform right, don't complain about the weather, learn radio protocol fast, look after your bunkmates. Supervisors book on attitude before skills.