I'm not seeing any reason this shouldn't work from a look at the driver code. One thing you could try is using the Basic Z-Wave Tool driver to read the value of configuration parameter 14 to make sure it changed to your desired value, the offset according to the manual.
I'm not seeing any firmware or hardware differences with this parameter, so I can't imagine that is the problem, but I don't know what else could be. This tool will help you see a bit more information and may help.
If it's not right, you can also try using the tool to set the parameter to the desired value. You'll again need to consult the manual to see what the values you need are (parameter 14, size 1, and whatever actual value you want to set it to).
Keep in mind that you will again need to wake the device (immediately) before using any of these commands in order for it to respond.
