I have given up looking into sound localisation because we have found that Raphael's left ear seems to be as good as dead now. To be fair, I should say that it is actually fluctuating but even on its best day Raphael does not get any useful hearing out of it. I suspect that it has something to do with the sensorineural loss but regardless of what the cause is, he can't hear out of his left ear anymore. We will look into other options now such as crossovers or maybe cochlear implants but we are in no rush to mess with this at the moment.