I'm in the regular grass. Maybe that could be throwing it off, but the next Mild non-synch frame is 16 frames away, not sure if NPC's could advance it that many times in 1 or 2 seconds.
EDIT: Oh shoot, there's a swarm -_-. I'll try again with swarm settings and see if that helps.
I'm online more often on Neoseeker, same username. Come talk to me there if you want to chat :)
Proud owner of extremely rare 3rd Gen events most noobs would drool to have.