Thanks for bringing it up! I used pokevision only for a day or two before it was shut down. And I never figured out how to use in a meaningful way the indications of nearby Pokemons inside the game. So when I hunt I just walk around. There is a park not far from where I live and usually there is a good catch around it. I am not super serious about achieving anything in the game. It serves as an incentive for me to go out for a walk and that's good for me :) This is probably why my collection of Pokemons is not that impressive.