Unifi USG Pro4 Advanced Policy Based Routing

I have a homogenous Ubiquiti/Unifi network with 2 WAN's with WAN2 set to Failover only. I have several LAN's setup and most of them should be accessing the internet via WAN1 with WAN2 only as failover, which works fine. I also have a VLAN setup though which SHOULD only connect to the internet using WAN2 and then WAN1 becomes it's fail-over. Unifi shows a sample SSH session to route in this manner and I've tried to implement it numerous times to no avail. [login to view URL] I could really use some assistance getting this to work, and once it's perfected via SSH it needs to be permanently implemented by modifying the controller's JSON file. I will have to be on site to test the routing so we will need to coordinate this. I can provide you access to the control panel and SSH via Teamviewer while we sort it out.