https://i.imgur.com/Df1aSpL.jpeg
This is ctf_ballin_sky with surf ramps.
Download: ctf_ballin_slide_a1
Screenshots: https://tf2maps.net/downloads/ctf_ballin_slide.19291/
Compiled with BSPReveal
The latest version can be found on serveme.tf
Let me know what you think and if you have any performance issues.