His DJ name is DJ Enso. Real name is Cassady Winston. Hangs with DJ Yao. Can find him on various places on the net. I know him a bit, don't hang out with him tho.
I mostly only go to dnb and dubstep things these days. There are a few crews putting on those events. The most known and active one is Heavy HongKong.
They used to put on events at Backstage a lot but not much anymore since XXX opened, only really when XXX is already booked.
Have been to good events at Otto Lounge (but they shut down now).
Been to good events at Hidden Agenda which is mostly a rock venue, but they just moved to a new location and the sound sucks. The reverb is ridiculous, adding 3 extra subwoofers for an electronic event won't make it better. Hoping they can fix it. I was told by someone that the new location has to close at 1am as well which rules out electronic events.
Yumla is well known for underground house and technology, but they are closed at the moment while they find somewhere else to set up. They have a bad reputation with a lot of the local djs so none of my friends will go there anyway.
Most of the other underground events are at Insenses (Basement). I don't really like that place tho.
For the commercial clubs, the only ones that play decent music are Volar, Fly and Kee Club (if Mr Sit and friends are playing). Volar = getting pushed in the back all night long. Drinks are stupid expensive at all the commercial places. Kid Fresh runs nights at Fly sometimes and is one of the best DJs in HK if you can catch him on the right night.
So yeah, the underground scene isn't really in good shape. XXX and Insenses are really the only places. But I just go to wherever the event is which is usually XXX for the Heavy HongKong events and Hidden Agenda for rock / metal / hardcore etc. But Fai from Heavy has been known to experiment; has put on events at a war games place in the bush and under a bridge near the Kwun Tong ferry to name a couple. Police always interfere of course.