The 111 commuter serves SW Austin, but only runs a couple of trips for commuters. Since the stops are all in place, this route could be used to provide evening service for residents to travel downtown for dinner/shows etc.
SW Austin is VERY underserved by Cap Metro. The #333 is cross town only. Getting from the Slaughter/Escarpment area to downtown is a minimum on 60-90 mins on Cap Metro.