What to do when in case of gradual Rollout with Socket Mode Backends

[vedanta28]

We are currently migrating our Slack bot from an older architecture (V1) to a new one (V2). During this "cut over" phase, we have both backends running concurrently. Both backends use the same Bot Token (xoxb-) but different App Token. Now, events are being distributed randomly between V1 and V2. This is an issue for us.

I found it in the slack documentation that:

When multiple connections are active, each payload may be sent to any of the connections. It's best not to assume any particular pattern for how payloads will be distributed across multiple open connections.

Now, is there any way to handle a gradual rollout in such cases, except say having to setup some kind of proxy setup which does this routing for us?