I wanted to follow up on your open ticket, but since you created this thread, I will reply here, first. I totally understand your frustration and we know that ghost removal has been a sore subject since C7 launched. We believe that this issue is resolved in the next release. To answer to your last email, we are equally eager to see the next release available to public. While I do not have a time-frame, if testing goes well, it will not be long before the update is available.
With that being said, based on our research, throwing repeaters at your system may not help as much as. Knowing that you have ghosts, I recommend not performing Z-Wave repairs while these are present in your system. I would also screen your logs for any excessive logging from devices, which may be indicative of problems with that particular device. Also, using built-in drivers where possible may help. Lastly, I noticed that a LAN connected device often times out. This alone can make your hub unresponsive at times. If you use integrations like Chromecast, I recommend disabling those temporarily to see if your problem goes away.
