Load Balancing ISO-8583 transactions received through a single tcp connection on the virtual server

We're trying to load balance ISO 8583 transactions between multiple pool members.

The client platform sends all of it's transactions through a single permenent tcp connection to the F5 tcp virtual server.

Currently this connection gets balanced to a single pool member.

We're looking for a way to load balance those transactions among all available pool members.

Does anyone have a working setup to load balance this type of traffic?

We tried Stanislas_Piro2 's iRule on a test environment with a tcp virtual server with the oneconnect profile with 2 pool members but it didn't work.

https://community.f5.com/t5/technical-forum/iso-8583-load-balancing/m-p/38922