I haven't. I've never used SASS directly on the production server, I just run Compass on dev and push the compressed css to a cdn or media server. You might wa

I haven't. I've never used SASS directly on the production server, I just run Compass on dev and push the compressed css to a cdn or media server. You might want to look into the C implementation? https://github.com/hcatlin/libsass https://github.com/hcatlin/libsass