I've rarely seen all four of our official servers full since like the first two weeks of the 2.0 release.
These days, I've only seen like one server completely full and the other half full during the weekends nights at tops.
so why don't we make use of the empty servers??
my suggestion is this:
keep the official #1
and 2 as it is,
but for #3
, include ONLY the custom maps like pvk_keep, pvk_sanctuary and etc
and for #4
, only SURF MAPS
I think this would help to attract more players in to the official servers.