A300 Location
It's not Monarch is it? Well don't learn it box by box cos that makes it so much harder. Learn where each individual item is eg- take the oxygens and then memorise where they go, dont just remember things like "at the front left door theres 2 x BCFs, 2 x Smoke hoods, 3 x Oxygens" etc..
if u get what i mean...!
takes me about 15 diagrams every time to get it perfect whilst revising!
Good luck. T