@Roey1984 your setup is just about right, my comments would be: Spread the APs between the switches so that when one reboots, you only lose half you don't need to create VLANs on Meraki switches, they are already there. You only need to create VLAN interfaces, but in your case those are on the MX75, so nothing needed. With regard to the second MX link, I'm actually not sure. One of the three switch links will go into a spanning tree blocking mode so that you don't have a loop, hopefully it will either be the link you pointed to, or the other direct link to the MX, but there is a possibility of it being the aggregated link. We only multi-link physically stacked switches to MXs so haven't experience of your exact configuration.
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