Ah already ahead of you there, I came to the same conclusion after attempting to do a 'single device' model, which just couldn't do it. (If I weren't trying to do API switchport monitoring, it probably would've been fine).
I use the MX at each location as the 'anchor' for all of the Meraki monitoring at the location:
But they somehow still manage to sync up. I had the AMP and IPS checks at 4 hour intervals, and after restarting the collector, started getting buckets of 429's:
And now what's really got me confused ... I set both of those to 5 minute collection intervals about 30 minutes ago and now everything's fine!
