I started working on the pokemon I need from the safari zone during my idle time. I've caught all the plains ones, so I understand the days required and item placement. I have two questions though:
1. Does it matter if I have too many of a placed item? So that I could be farming for a few things at once with the multipliers.
2. Do some of these have less than 1% occurrence? I was looking for about 20 minutes earlier and didn't see one Riolu in Meadow with 10 trees and 14+ small rocks.