My session yesterday was recorded, apart from the fact that me and mark were having a chat for about 25 minutes before it kicked off it seemed to work quite well:

Skip forward to 24:32 to get to the actual content.

The lovely Mark at SQLRelay has edited the video and put it on youtube so you miss our chat at the beginning:

https://www.youtube.com/watch?v=9YJQTx3bPek

Any questions please shout!