I am visiting South San Francisco at the end of the month and am in search of a good jackin and viewing experience. Does anyone have any recommendations on SF Jacks, saunas, or other places for a jackin experience?

Posting this again, just in case there are more people to see this today.

Just go to a bathhouse. Eros is a good cruising spot, just hit the rooms with the porn playing and you'll find a guy to jack or do more to in no time.

This is going back a few years (2009) but I have been to SF Jacks a few times and loved it.
The guys on the door are friendly and welcoming, especially to new visitors. When I went, there were 30-40 guys who were respectful of limits and there, just naked, chilling out and wanking. It is a great atmosphere.
Better than NYC Jacks where I found the guys a bit pushy and the host had to keep telling people not to fuck/do oral, so it wasn't as relaxed.

Saunas; I don't like as guys want full-on sex, and are normally move on if you just want to wank...

I hope that helps.