@aaronventure Glad you found a solution that works for your use case. The enduser would love this feature and would soon be complaining that KT doesn't have it. I think these are the kinds of VI problems that we've gotten accustomed to that really should have better behavior.
Unfortunately, I am trying to find a reliable solution for crosstalk in realtime between a client and host plugins and have been pulling my hair out (ok, there isn't that much left to begin with) over these same OSC behaviors. I've about given up on it, but FWIW @Christoph-Hart I would also request looking into the mentioned behaviors, because they're very unexpected.