SAP .NET RFC server with Load balancing

I am trying to create a RFC server for an outbound connection (SAP => .NET => back to SAP). We have successfully completed a prototype where the ABAP program calls the .NET server using the SAP .NET Connector proxy. However, as we try to implement, I have not found a lot of documentation on implementing the SAP .NET connector in a load balanced environment. Basically, configuring the SAP .NET application to run on multiple Windows Servers and register to multiple SAP application servers

SAP APP
//.NET

SAP APP =====> .NET

SAP APP //
.NET

I did find one thread on load balancing (RFC Server Question) but I am wondering if anyone has found a good article or SAP best practices document. Is there a way to use the message server as an entry point to load balance across multiple App servers?

thanks,

dave