Approve to multiple publishing destinations simultaneously

Hello everyone.

In our current project with OWCS (last version), we have 1 staging server, and 2 production nodes (each with its own instance of owcs), which are then accessed through a load balancer.

Then our current way to publish content to production, is to approve assets for both destinations separately and publish both queues, in order to maintain both production servers with same content.

The problem with this approach, is that users could forget to approve some contents on one of the production servers.

We have read about a way to extend the Transporter class, creating an unique publish queue with 2 different destinations... but we find it too complicated and risky (what if one node is offline? does the publish fail? is the other node rollbacked to initial state?...).