@Jailer:
At the risk of sounding like a total noob, what all exactly does this block? I currently have the top 20 blocked. Will this block those as well as other known offenders?
Unfortunately, the primary reason why I wrote pfBlockerNG was not for the Country blocking per se.. It was that the previous pfBlocker version couldn't handle a lot of the Threat Sources that are available… Also it didn't have any de-duplication of the lists... Not to mention that the Country lists were over 2 yrs out of date.
So to answer your question, if you use the Country Blocking features, it will download those first, then other lists are downloaded and if the IPs are already being blocked by a Country List, those IPs are skipped as they are already in the database... So yes, the other lists make a big difference then just using Top20.