not really, i've turned off/uninstall all other plugins and just let this one run and always the same problem. Sometimes i have my server full (20/20) and i just turn the plugin on, change the map and i end up with 5 people in the server with no problems and 10/15 messages on friends from people that cant get in.
I've heard that other servers have the save problem, mostly servers that have model mods on them... dont know if its true or not.
Could it be something related with the latest CS updates and models precache?...