Tom covers a lot of material in this podcast. In the "Fly Box" section, he compares and contrasts vests vs chest packs vs waist packs vs sling packs, he covers how best to keep your flies floating (and reveals his secret) and then answers a question about realistic vs impressionistic flies.
The main topic of this podcast, though is what easterners can expect when taking a fishing trip west and what westerners can expect when making a trip east. What are the differences? How can you best prepare?