General comments to answer above:
1. They open from 1pm depending on: the bar, how busy things have been and the day of the week.
2. If you dont want to part with HKD2000, dont bother going

they are expensive places to punt. Personally I've never parted with less than HKD2500 for a session in a curtain bar albeit I am an overniter guy. My average for a few drinks, lap dance and a take out for overnite would be ~HKD4,500 I would guess. I've spent as much as HKD7,500 in one night.
3. Most girls are Pinay, there are quite a few Thais and, to a lesser extent, Chinese girls.
4. I have never enjoyed punting as much as I have in these bars, YMMV of course.
5. I have a soft spot for San Francisco but the best value for me has come from Waikiki.
My recommendation would be to drop in to San Francisco's later in the afternoon, around 5pm is always quiet for them, get yourself a free drink - ask the mama before you go in and they will offer it to you. They will sit two girls with you most likely. Buy them both a "small drink" for HKD121 each & have a relaxed chat. A bit later ask one you like the most to come into the private room, will cost you a "mixed drink" HKD242, she will drop her top and give you a lap dance, you can DKF, molest her tits and have a decent grope - repeat as desired

You can bar fine her at any time for a short/long/overnite session, HKD1500-4500 will be asked, you can get them to HKD1000-2500 depending on how busy the bar has been.
BTW I think this should be in the Q&A section, not a report. Good luck bro! Give it a go and report back.