I'm looking for the actual timing difference between regular old spawns, and incense induced spawns. Has anyone tested and confirmed this timing?
Rate of movement does not affect incense spawn rate. It just means you're picking up ambient pokemons in addition to those lured to you. I use incense while sitting in my bedroom, which hardly ever has a spawn. It's close to tared for zero.
In my experience, incense lures about 4-5 pokemons per pot. Most commons. Sometimes an uncommon. Once a rare. Probably RNG as to when and what, but I've never had less than 4 or more than 6 come for an incense.