Dual WAN Scenario (Starlink and WISP) RB4011

I run a small network in a trailer park. In the summer there are around 150 devices on the network. I currently have about a 40/10 WISP connection. It’s relatively stable, but can get congested in the evenings when people are watching Netflix etc. I ordered Starlink in April 2021 hopefully it will arrive shortly. My thought was to have my current WISP connection and Starlink connection on my one RB4011 router and divide the connections. I was hoping to split up the load by having Starlink handle the streaming services and browsing, and WISP handle the Realtime services like video calls and telephony. I’ve read that starlink can often drop out and has a higher ping time. My WISP ping is ~7-15ms while Starlink is ~45ms+/-.
How would I go about setting it up like this? Does setting it up like this make sense?

Any help or suggestions is appreciated, thanks,

Chris

It’s a good plan!

It might be easier to split the traffic the other way around !
I would make “Startlink” the default for ALL Traffic.
Identify the “Realtime services” via mangel Rules and give them a different Routing.


P.S: You may still need QOS to avoid a single client hogging all your bandwith.