I have noticed after being on the surf server for a few weeks that there are not many skill maps. I recommend Lithium, Construction, Sandman, Ember, and Insignia. Lithium and Construction are both really well made, tough skill maps made by SV l Copy-Mark. An easier, yet just as well made, is Ember, SV l Skars first skill map that turned out to be a huge hit on some of the other servers. Sandman_v2 was made by sandman and and to everybodys surprise was REALLY hard and had great jails/textures. One of the jails is the Showdown level on CoD4. Insignia_b1 IS my favorite map on the list. It was made by Li/\/us and is very unique because the level arrangement get's switched around and some of the levels deal with different aspects such as moving ramps, timing, and memorization. Most maps made by SV are usually really well made and tough. The entire SV clan made a collab. that I think is amazing, named Velocity after Surf Velocity. It features a level made by JesuswasHomeless which, is always going to be tough. It also has levels made by Copymark, Skar, HellRaisedSurfer, and Sangre.
Lithium - http://www.fpsbanana.com/maps/50446
Construction - http://www.fpsbanana.com/maps/61891
Sandman_v2 - http://www.fpsbanana.com/maps/69053
Ember - http://www.fpsbanana.com/maps/56008
Insignia_b1 - http://www.fpsbanana.com/maps/66872
Velocity - http://www.fpsbanana.com/maps/65857
Please take these maps into consideration.