Movement has a job
The developer names speed progression and escaping guards in the core loop. Use movement improvements to support a delivery you understand, rather than judging an upgrade only by its displayed number.
Compare the same route
Choose a familiar egg and return landmark. Compare the full round trip before and after a change, including whether you actually place the animal. A shorter failed attempt is not improved income.
Trails and current prices
The research includes trail-price searches and gameplay footage. It does not provide an independently verified current price list. Follow the current movement, equipment, and training prompts rather than relying on an older shop layout.