Cisco :: AIR-CAP3502E-A-K9 - How To Bypass Light Weight APs From LMS 3.2 Discovery

I have been installing Light Weight AP's and these make LMS device discovery take much longer because they are found via CDP but do not run SNMP. So you suffer the SNMP retry and wait time for each one which adds up with several hundred AP's. I added the CDP platform description they announce via CDP to system-config.xml but this didn't do the trick. I have updated system-config.xml successfully in the past to add ATA's and 7936 conference phones and this stopped discovery from processing these devices. So I was surprised when this didn't work for LW AP's. The CDP platform of the AP's looks like this (from show cdp n):
 
Platform: cisco AIR-CAP3502E-A-K9   ,  Capabilities: Trans-Bridge
 
So you can see cisco is all lower case and there appears to be spaces at the end before the comma. I thought the spaces might be the problem so I added them in system-config.xml but this didn't work. When I display system-config.xml with the XML editor in IE it does not show spaces at the end even though they are their when I look at the file with notepad. When I enable debug for discovery it shows these being added to the bypass table for CDP discovery but it still tries to process them. This is LMS 3.2 on Windows Server 2003. I use the CDP module for discovery.