So, as I go into detail on the spells I noticed something that I hadn't noticed before. For example, with Fly, it states:
The subject of a fly spell can charge but not run, and it cannot carry aloft more weight than its maximum load, plus any armor it wears.
I had always assumed that armor weight counted toward the carrying capacity and so it often pushed characters into carrying a medium load on its own. However, this implies it might not. In the starting of the Adventuring chapter, however, it explicitly states:
If you want to determine whether your character’s gear is heavy enough to slow him or her down more than the armor already does, total the weight of all the character’s items, including armor, weapons, and gear.
Are one or other of these a misprint or am I missing something in understanding why it would say the gear plus the weight of armor? Can encumbered characters become unencumbered by a flight spell, if subtracting the weight of their armor makes the difference, for example?